Why do blood types matter? - Natalie S. Hodge
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- čas přidán 28. 06. 2015
- Dig into the 4 main blood types - A, B, AB, and O - and find out why some bloods can mix while others cannot.
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It’s often said that despite humanity’s many conflicts, we all bleed the same blood. It’s a nice thought, but not quite accurate. In fact, our blood comes in a few different varieties. Natalie S. Hodge defines the four major blood types and sheds light on why some bloods can mix while others cannot.
Lesson by Natalie S. Hodge, animation by Brad Purnell.
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YEs!
Completely deserved
Un doblaje al español sería muy interesante ya que ustedes desglosan muy bien la información Felicidades!!!!!!!!
No 1 asked 🤣🤣🤣
No
There’s one thing they neglected to mention: it’s that O, although recessive, stays in your body if one of your parents transferred it to you. Therefore if for example your parents are O and B, you become B but still have the O gene. Therefore you can pass on an O gene even if you’re an A or B. That’s why the O blood type hasn’t become extinct.
edit: to everyone saying it’s the definition of heredity/recessive gene, you’re absolutely right and I get it, I’m just trying to clear this up for those unaware :)
Thank you I was wondering how my sibling became o negative
woaaaah okay
Oooohhhh ok my sister has type O like my father and I have type B like my mother. If I have a child, they could have type O!? That’s so cool haha
@@cassbroomfield6147 That's the most precious blood donor, they are used in ambulances because they can be used in ANYONE without a blood test.
Woah! My parents have A and B blood type and both me and my sister have 0.
I got an A+ on my blood test.
deet0109 That means your blood type is A positive
deet0109 congrats 👏🏽👏🏽👏🏽👏🏽
Hannah Barton It's a joke
😂
Whats your overall grade?
As someone with an AB- blood type, I am always annoyed when in fiction there a plot line in which someone is in deep peril because they have the rare AB- blood type and need a transfusion, but a match is hard to find because of the rarity of AB-, when, in fact, even though AB- is the rarest blood type, finding a match is the easiest since someone with type AB- is a universal recipient.
You are correct! Specifically, type AB+ is the universal recipient for 'all' red blood cell transfusions of any ABO type, both negative and positive. Type AB- can receive all negative red blood cell transfusions of any ABO type (as per information from the Red Cross) but not positive types. Whereas, type O- can only receive type O- red blood cell transfusions. (Type O+ can receive type O+ or Type O- red blood cell transfusions but nothing else). But what few people know is that just the opposite is true with 'plasma' donations. Type AB blood is the universal donor for plasma because it contains no antibodies that would attack the antigens of other blood types.. Type O blood on the other hand is not a good candidate for plasma donations because of the anti-A & B antibodies it contains. Only type O recipients would be compatible with plasma from a type O plasma donor. Type AB blood is in big demand for Plasma donations these days!
@@moonbeam2062 I was sad I could get only O blood and how it wasn't fair blahblahblah but you tell me I can get almost any plasma! Sweet!
@@NicksStuff If you're type O, then yes you can receive pretty much any plasma from any blood type plasma donor. It's basically reverse logic of red blood cell blood donors. Because you already have anti-A and anti-B antibodies in your plasma then there's no conflict with the antibodies in any other ABO type plasma. By the way, in case you don't know (or maybe you do know), after someone donates "whole blood", it is put through a process where the plasma is separated from the red blood cells! (Plasma has a clear slightly yellowish look after its separated.) So, when someone gets a blood transfusion, they are actually getting just the red blood cells without the plasma. Also, plasma donations are used for slightly more specific purposes than a general blood donations. The most common uses of plasma donations include individuals who have experienced severe trauma, burn or shock, adults or children with cancer, and people with liver or clotting factor disorders. Plasma supplies necessary blood volume needed to restore blood pressure and volume status, as well as restore electrolyte levels. Also, it can be used in an emergency situation during trauma care when there’s not enough time to test blood type prior to a transfusion.
@@moonbeam2062 Thanks!
@@dave23024 But your blood type is perfect for plasma donations! AB+ is the universal donor for plasma because it has no anti-A or anti-B antibodies. Plus, unlike blood donors, plasma donors can get paid at many places which sell plasma to Pharma companies for use in globulin and other life saving drugs.
My grandpa was in need of a blood transfusion, but they couldn't find data on what blood type he needed. He kept telling us to "be positive", but it's hard to think like that now when he's gone.
This comment simply killed me 😂😂😂
just gonna camp for a woosh
Sad
😏🌺
You guys are slow he meant his type is B+
How come there's more O blood type people when A and B is dominant over O?
Because O alleles are way more common.
But if they are more common if a or b allele parents get with o, o is basically non-existent cuz it's not dominate
XenoGamer The O allele doesn't disappear just because it's recessive. Plenty of people with type A and B blood still carry it, and their children may still be born with O type blood.
So kind of like blue eyes where two brown eyed babies can be born with blue eyes though uncommon.
XenoGamer Mother Nature. Since type O is accepted by all other types, more people could donate and the chances of survival are uplifted.
What's fascinating ist that people with different bloodtypes are more/less susceptible to certain diseases. I haven't seen much research in this field and it dealt only with pandemics like the Plague. It could be useful in the future to know.
Dr. Peter D'Adamo is the expert on Blood Type Diets (A B AB & O) eg. Eat Right 4 Your Type , on how to avoid the illnesses assoc. w. any blood type / how to enhance the health of one's blood type. Look up his works / research etc. on line
Covid might actually be influenced by blood type. Read that some months ago, haven't heard any further about it though, might have been shown not to be correlated.
Any recommendations where I can read more about this? There is a theory that eventually Type A will die out.
people with sickle cell don't get malaria
@@kdphotos4691 I'm A+. Type in 'blood type' & 'Bruce Lipton'. You'll also learn some epigenetics from him.
thank you. With the help of your wonderful, innovative animations, i can completely understand this topic
2:22 - I microwaved something a couple minutes ago and I thought my microwave was beeping at me…
Lmao
LMAO
LMAO
Lol
We had blood typing done back in high school and mine shows type O. I thought for a long time that my blood type sucks compared to other types. But I appreciate it more now after watching the video. Thanks Ted Ed.
Is it Rh-O positive or Rh-O negative?
Man thinking even your blood type “sucks” is wild! Get a grip.
Why on earth would anyone think their blood type sucks???
@@th8257 ----------------- ofcourse Count Dracula would..... sticking ones neck out ....increases chance of being victimized..... Garlic Sunlight Crucifix are all measures to counter.....good luck .....
Bro, you’re like the Angel of everyone’s doomsday. O’s help save lives, it’s a gift.
I've had 2 life saving blood transfusions. I am very grateful to have a common blood type. I was so thankful to my donors that I wanted to also start donating blood. However, in the UK if you have received blood transfusion, that forever rules you out of donating blood. Please, to all those with rare blood types in particular, give blood. The people who receive it are always very grateful.
I am O- and just signed up to become a blood donor thanks to this comment :)
As a blood/plasma donor that makes me so happy to read =)
Even having a tattoo stops u from being able to donate blood in the uk.
@@DunYork Ahhhh that's amazing! Im so pleased to see this! Thank you so much for doing such an amazing thing, and i feel so happy to have influenced someone into doing something so good, when it's usually bad haha. Good on ya!!
@@kittymeow90 You should feel so proud of yourself!
I am learning better more from Ted Ed than my school .. thank you for making such awesome content and for you simplicity
His information is focused & specific & well worded instead of being loosely worded & mixed with countless other pieces of information.
@@curtischildress9580 the second one is infographic
2:04 If you happen to inherit two Os y--
Me:you get Oxygen
Damn, you got a TED Ed video coming out soon? The world needs you 😫
So you saying you got O, too?!
I'm a biology teacher and the animation at 0:47 and 2:34, is misleading-- a white blood cell attaching itself to a red blood cell is not what occurs. A better animation would be the white blood cell just passing along, ignoring the red blood cell. The white blood cells shouldn't "notice" the red blood cells-- anything they notice, gets destroyed. What the animation looks like is "agglutination" which is bad-- it's what happens when let's say, a person receives the wrong type of blood. Antibodies will attach to multiple foreign blood cells and cause clotting.
Usually any attachment of a white blood cell to another cell, is usually what happens before that cell is destroyed, like macrophages. At least that's my understanding and perhaps I'm reading into that animation incorrectly.
Other than that, fantastic video. I've taught my students about blood type and genetics and they were fascinated. So much that my 3rd year teaching biology, I started doing blood typing labs. My students loved learning about blood type and were excited to know their own, even if that meant having to bleed in class. :)
XoletteScience So wait, then how does the white blood cell know what type of antigens the red blood cell has?
XoletteScience Are you allowed to use blood in schools? Here in Australia you aren't allowed to do anything to anything that could potentially carry bacteria from humans or otherwise. Aka no saliva, blood etc.
Noah Williams White blood cells actually have specific receptors (binding sites for surface proteins and antigens) for foreign material. This means that red blood cells which display self antigens will not be able to bind with the white blood cell and the cell will ignore them. However, if the white blood cell encounters foreign material with foreign antigens that match its receptors, it will attack and stimulate B cells to produce antibodies against the invading pathogen.
lugiamaster9707 We're allowed. You just have to take safety precautions (gloves, alcohol swabs) and I have my students send home a permission slip that requires a parent signature.
Xolette
:O Wow. Thanks for the explanation! :D
Great introduction to blood types and good foundation for further analysis 👏🏼👏🏼👏🏼
The graphics in this video were fantastic in making simple, a complicated subject. Good job!!
I’ve learnt more stuff here than I’ve learnt at school
You didn't learn more here than in school, but you're more eager to learn here than in school. Which is understandable
@@nonridiculousadjective6597 well put !!
too bad you forget this stuff in 2 days since you do not study it but simply listen to it once for 4 minutes
True honey😉
Same
my bloodtype's AB, i feel so selfish..... i dont give, yet i receive lol
+Fran Goodes I'm not sure you're understanding what AB actually means. AB people can have anything, O people are the ones that can only accept O.
Mine is AB- so I can only give blood to another -AB or AB, but I can accept the negative RHs xD
an AB blood type is a universal donor for plasma. You still can give
@@krissjsjsjs Yet i would not give cuz i do not want people put a need inside my blood vessel cuz i would just eventually pass out and even when I got the blood testing I passed out even tho it is just a short simple push of a needle and the blood is being placed on the microscope slide.
Isn't blood type AB can donate to all? Like theyre universal donor
The prevailing blood type also greatly varies by global region. For example: B+ is found in 8.5 percent of the U.S. population. Across many countries in South Eastern Asia, B+ is the most common blood type, found in more than 30 percent of the population.
Thank you so much for uploading this video. It is helping me get through the pandemic!
you commented 2 times #2
This video makes so many people feel like they are adopted
Sarmila Das hahaha haha
Underrated comment
LMAOO
LOL
Exactly. I was literally thinking so as my parents have O and B types and B being the dominant one, but still, my sister and I were born with the O blood group.
Well, my confusion(LOL😂) got cleared as I read some explanation from the comments regarding this thing.
I'm AB+ And I'm getting that tattooed on my chest, not for decoration, just in case I'm ever wounded and knocked unconscious, the doctors know that any blood will do, rather than use their precious supply of O on a John Doe.
Sameeeeeeeeee
If your in a RH GROUP dam nice idea
smart
@@suganyad5441 armyyy
I'm not sure they look at your chest if you are not in cardiac arrest
I would like to add a few things to this video: RH negative mothers will make Anti-D when they have a RH positive fetus if there is a bleed, that is why Rhogam is given to RH negative women, to prevent Anti-D from forming. Also, there are different blood group systems that have likely developed as a preventative measure. For example, the Duffy system has a combination that likely developed because it provided better protection against Malaria.
I've wanted to learn more about blood types for some time now. Thanks Teded.
This Video is slightly incomplete:Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.
kolang82 that is correct if both parents do not carry an O gene. They both have to have an O for a child to be able to have O type blood.
kolang82 Remember that not only your genes are the ones that carry over to the child. Also the genes of your parents, your grandparents and so are carried. That´s why both parents with brown hair can give birth to a blonde child, and also why parents without O blood type can give birth to a O blood type child. A good example is me. I´m O- and my parents are A and B.
+Alejandro Diaz
Yeah, uh, keep on believing that.
And look at Punnett square, and you will know why
👍
This helped me a lot! It was hard to understand in my biology class, but TedEd made it so clear👍
Exactly
Very clear explanation and representation, easy to understand.
👍🏻
Pretty good quick summary. Thanks!
I've just stumbled upon this channel, and I can't stop watching these videos, HELLPPPP
I love watching them when I’m high on the toilet
I'm AB+, but I never find so much about my blood type, wish there were more background over this
Same
I’m also AB + and it’s so hard to find anything about it lmao
Yeah none of my classmates have AB+ or AB- ...I'm the only one
@@sadiasaba3863 you're the only person in this world which have 2 kind of blood type
same here- my mom's B and my dad's A 💀
@@jules6578 Lol!! And I don't know my parents blood type exactly, but I'm a AB+! You too? Haha
this one video cleared much of my doubt, thankyou
Asian parents when you have type B blood: 😡
So you have chosen...death
@@davidjankovic6709 WAIT WHAT?!
Not true! If you have East Asian parents, you definately have the very best Blood-Type!!! ^^°^^ That`s Not B!
You know Einstein had b right? Also some of the most geniuses needles to say when Einstein had it. And what is the problem with b for Asians? Julia Roberts has b negative and other very famous and successful people.
lmao i don't think y'all get the joke, as a Chinese person, it's an inside joke for asians that if you get below an A for a grade, your parents would get really mad at you, so the joke here is that if you get a blood type under A, Asians parents would get mad, as if blood types were like grades. . . soo yea, not me explaining a joke 👁👁
AB- : i'm the rarest
rh null: hold my blood
more like rh []
It's RH⁰
@@lueezationlueezaming2928 ok mister wikipedia
@@concreteenjoyer7422 Ok xXxRektDabLolxXx
My blood type wasn't even mentioned...... I'm A negative
I'm Deeply grateful for this channel
Very informative. I would have also liked to hear about the positives and negatives blood group .
at 3:15
00:44 for the brief off-topic thing you had in mind yes, but for the on-topic discussion you were in the middle of, you made a HUGE HUGE mistake by presenting the antigen as being something to which the white cell binds to, therefore not having an immune reaction. Nothing further from the truth. If it were so, they wouldn't be antigens, they'd be self-antigens. You forgot to mention that those antibodies (which are found in the plasma) are the opposite of the antigen. So for example, type A has A antigens and anti-B antibodies, type B has B antigens and anti-A antibodies, type AB has both A and B antigens and no antibodies, type 0 has no antigens and both anti-A and anti-B antibodies. That's why the immune system doesn't attack its own blood because it DOES NOT bind to it, since it's different and only attacks "opposite" blood types as I described above. I know what you meant to say, you just said it almost the opposite, which can be devastatingly confusing for a noobie :)
Yeah I was wondering the same thing. They got it mixed up.
I was also wondering the same!!!!
👎 ⛔ no.
But what about O being a universal donor? Then the A and B will bind to, well, A and B, as opposed to being universal
@@thechair6519 type 0 is an universal donor because again, the name suggests the antigens. So with 0 type, u have zero antigens, so when u give this blood to a person, there's nothing to react TO, no matter what antibodies their plasma has (no antibodies for AB blood types, A antibodies for B blood types, B antibodies for A blood types or A&B antibodies for 0 blood type). So no matter how rich or poor the acceptor's blood is in antibodies (attacking cells), there's nothing to attack, since 0 type has 0 things to attack :)
I’ve stumbled across this channel and I’ve watched like 50 of these damned things...help me
You and me both
You are doing a great job!! 😊
suffer.
Thank you for this very informative video!
*"Meanwhile"*
Mosquitoes to people with O blood type:
*"Peace was never an option"*
Teachers : Why do humans have different blood groups ?
Students : So that mosquitoes can enjoy a different flavours ..
B quite
I had to have a surgery when I was little and I very vividly remember my doctor mentioning that I had ORH+ blood, when he left I kept asking my mom what it meant but she couldn't fully explain it so I remember I asked the nurse that was putting in my IV what it meant bc i was five and it sounded like something weird and scary but she was super nice and explained it about as well as you could to a five year old 😂
This really needed an introduction including when each blood type originated.
Oh my those allele animations were amazing! Wish i has them when I was learning genetics
O is the best dude on the world
Can help anyone, but can't be helped by anyone except himself
Only O negative
2:30 this bit taught me everything my biology lesson taught me in 3 hours
Very good. Thanks.
Very well done. Two small notes, incompatible blood would agglutinate and hemolyzes as result of action by the immune system and hemolytic disease of the new born is generally a potential issue in the second and subsequent pregnancy , if care ( the administration of RohGAM ) is not given during the first pregnancy. It can happen if the mother was sensitized either by blood transfusion or a spontaneous abortion that went unrecognized, miscarriage or termination of pregnancy or fetal bleed but it is rare. Although not as common it can also involve the ABO and other antigens within the Rh system an other antigen like Kell etc. I realize this my be a little beyond the intended scope of this video, that said, this and other reasons should make clear the need for prenatal care.
this is so awesome, thanks for the informative video!
Merciful Christ this is complicated. It's explained really well here, but I'll probably remember only 20% of it. Gives me a newfound respect for many doctors who will just know all of this information off-hand (to add to the massive, huge, insane amounts of respect that I already have for doctors).
thank u so much for sharing this information with us ur videos always helped me understanding about the human body
Just enough information to make me have lots of questions I didn't have before watching this.
When I knew Im a Blood Type O Im so common. Because most people I know has that blood type. But I realize Blood Type O is special ❤
Blodd type 0 is common and only special if you're 0-.
Well, yes, Type O is special in certain ways, But Type AB is special in certain ways too.
So confusing, there's A,B,AB,O and - and + version too. Thank you people who donate their blood!
Do check out cancerPAL
CZcams recommend yet another video I didn't need in my life but still watched ...
This is an incredibly useful teaching tool. I’ve never looked up such an in-depth video and preferred to go and read about it instead.
I hope your local ‘petrol’ station is hiring .
what do you call a blood type for pessimists?
B-negative blood type.
@C. Bright: Don't be A negative person.
@@SeekerofWisdom1111 i don't rhink she was tho
O negative.
I'm B-eing Negative.
Come on guys B positive
I am O, mom is A, dad is O why?
+TrollBronze you're probably adopted...
Len Kagamine I was being sarcastic. I know there are a lot of possibilities as to why he could be that blood type. For example, maybe his mother also had a recessive O that she inherited from one of her parents making him their son. I never stated I wanted to be "edgy" that has nothing to do with this. Your idiocy amazes me.
I am very well educated on the subject. I wouldn't commented otherwise. You really shouldn't be on here if you can't take a simple joke lightly. It's very common for people to assume that they're adopted when matters like these happen and it makes sense to lighten up and be sarcastic. I honestly don't care how you think of me, go ahead and make your stupid prejudice, it doesn't bother me at all
Same here! I was like.. there must be a mistake somewhere. But +Len Kagamine explained it well here in the other comments. :)
me to! I dont understand either
This video is sooooo amazing👏🏻👏🏻👏🏻
So interesting. Thank you!
Interestingly, I'm O -, I can only receive from an O-individual but can donate blood to everyone, that makes me a universal donor, but I'm very picky when it comes to receiving. The dynamics of blood types is amazing. It's a matter of life and death. I'm not sure if this has same basis when it comes organ transplant, ie. Kidney etc. .
For organ transplants the primary antigen system is the Human Leucocyte Antigen (HLA, also called Tissue Type) system. It has a huge number of different antigens, and is the primary system used in forensics.
is that mean your blood type is O with Rhesus negative?
Yes, that's what O- negative means. @@LakshaDeirwa
Me with O- blood type, being a universal donor to people with those rare AB- blood types: Unlimited Power!
I'm B-
Plasma, though makes you a universal recipient
Awesome. Explanation
Very good production..thank you CZcams
when he said dogs have 13 blood types my brain went blank and I could only think of that
Were do they get dog blood for surgery for dogs. and cats. I don;t see a lot of dogs and cats donating blood.
@@johnd4348 well i've never heard of someone i know getting surgery for their pets. usually we let the pet die since it's expensive just for a pet that'll die in a relatively short time compared to us. So since few people get pet surgeries i figure it's incredibly rare or they do it without other blood
@@Adrian-qr6gk Pets have surgery all the time. My dogs have had several. I spent 12 thousand dollar on one of my dogs. Because their family. Dogs even have heart specialist and internal medicine doctors. There is even vets that specialize in cancer in pets. You just live in a very small world. Thanks for the reply.
@@johnd4348 Based on what I know from the vet shows I watch on youtube, they either have the animal store blood before surgery (if it's not an emergency and the procedure is scheduled) OR they have very large dogs with understanding owners donate regularly. If I hadn't seen it on Bondi Vet (great show for animal lovers who are interested in veterinary medicine btw) I would have never known since I've only had very tiny pets that are unable to be anesthetized. It's really cool how far pet care has advanced in the past decade. Dogs, cats and all sorts of other critters are surviving diseases that would have been lethal or deemed "not worth fixing" a scant decade ago.
I am Indian and study in class 11 I really loves biology and I am really passionate about this subject in my course book I have a chapter names blood system and I can see that the chapter of 16 pages (small one ) can be covered in just 4 minutes really I like this Ted talks from this I can save my time ❤️❤️❤️❤️🙏🙏 thankyou Ted ed
Do a search on the "Bombay blood phenotype" - a very interesting situation for the person with that type!
Well explained thanks
Very useful information
I still don't know my blood type
Same ;-;
Hahaha
Check it soon. It is important to know your type of blood
Idk mine either
zainab Just tell the doctor to give you o-so u stay safe as o- is universal
I am blessed with AB+, good enough.
have that too
@@nusaindah3182 same I'm the only AB+ in my family from this generation some how, but we are lucky as any blood type can save our life and nobody else can use ours, we are special and rare
I have AB-
Same
Thank you very much ;-) be well!
Thank you so much for this informative video you answered so many mysterious in my life..I'm RH Negative with 0 blood type but both my parents were positives and everyone always told me that one of them wasn't my parent but seeing physical proof my mother birthed me and my father was a drug addict he would be the one denying me and in the 80s DNA testing was new and it came back inconclusive however all my siblings look like me and sad to I'm identical to him..anyways thanks so much I'm in tears of joy
You had an O Rh- father. It's very uncommon, but an individual's blood type can change. It's a possibility, although a very slight one, that his blood type changed. Regardless, however it happened, your father was an O Rh-.
Unless your own blood type changed and their blood type remained a constant O Rh+. The statistical odds, and I mean astronomically, at that, indicate that your father was an O Rh-, but there is that slight, alight chance that a blood type changed, somehow, in either yourself, or your father.
@@brianwesley28 good morning thanks for your input, I'm kinda aiming towards my blood doing its own thing because I can look at someone who is sick and catch it, yet my body heals rapidly and I've never broken a bone, never had a bloody nose, had both my children naturally and can endure an almost unnatural amount of pain, I've played football in school, I've been in a BMX bike accident where I slid all the way down a steep back road hill into traffic sliding under a trailer truck I mean the list goes on, but I always heal faster than anyone I know they all think I'm from a different breed that I was switched at the hospital lol but I genuinely feel like it's this blood phenomenon seriously, I don't usually talk about it because people are scared of the unknown and hate 2 admit the fact that the earth and everything on changes, and evolves. There's more to this life then we know and probably will not understand in our life time but if I can help someone else who feels like this and can relate then I'm ok with that, because for once in my life after reading everyone's posts I NO LONGER FEEL ALONE LIKE AN OUTCAST.
so Brian its been fun chatting take care of yourself
My mother is O+ and my dad is B-... when the doctors told my mom I was a B- she was genuinely shocked because she thought my dad was O+ too😂
I just wanna point out, just because it's recessive doesn't mean it's not common. My father is Blood Type A while my mom is Blood Type O. And all of my siblings (including me) are Blood Type O.
I know this is 6 years old but for new people reading:
technically your dad is type AO with O being recessive. Your mom is type OO. His recessive O paired up with either of your mom’s Os and there you have it.
Get a dna test.
@@alangknowles this guy doesn't know about genetic crossovers
Yes my mom is B idk what my dad is but i think hes O too because im O
I love your videos !!
Good stuff.
didnt really got that at school (I finished school already) now i understand the blood types.thanks...funny thing is that english isnt even my my native language
I am o-
hamza tahir congrats
now you can donate to everyone
Dj H Cool
Dj H so am I
Dj H I am o+
Good job 👏🏻
What an informative and inciteful video. I cant think of a simpler way to explain it, yet I'm about to watch it all again to see if I can get it lol. Not good at biology. Never knew dogs had so many types
0:53 Nice to see them bonding again
I would have liked to know more about the positive and negative stuff, but otherwise good job! And also for anyone who may know the answer, will everyone eventually be an AB blood type, because A and B override O?
No over time everyone will not become AB. As there is no selection pressure the numbers of A, B, AB and OO should remain constant. O is the most common blood type in the USA at 45%, followed by A at 40%, B at 11% and AB at 4%. In order to have an AB blood type you need to inherit an A and a B from both parents. So if you have AO and BO they will have a one in 4 chance of having AO, BO, AB or OO. Just because a gene is dominant, doesn't mean it will it increase in the population.
7 years later (lol) but no. O is just way too common and people that are A and B can still carry the O allele to pass on to their children. So their kids can be pure O, resetting the cycle, depending on the other parent.
great job. that was informative. the world knows a little more, today.
Thanks for your informative video. I'm a type A rhesus positive, I believe that's quite common amongst humans ;-)
I feel so safe knowing Im AB+ :)
This helped me understand sooo much better thank you!! I'm a visual learning so the animations helped 100%
And thank you TedEd of course
Visualising Biology is so much better than just reading or learning it
There are alot of people being confused about their blood type especially regarding their parents. Even though One of your parents is A or B (which is the dominant) and one is O (that is recessive) that doesn't mean you will have The dominant one. It is more complicated than that but the easiest way to do it is using a punnet square. You see if you have a blood type B+ it not just B. It could be purebred and be BB or hybrid and be BO but both will still have B+. But when crossed with a blood type o that can only be OO and not BO or AO since it is a recessive allele (pardon my spelling) and will be overwrite by a dominant alelle (idk about the spelling) so by crossing it using a punnet square ( I advise you to research about how it works but it is really easy) you will likely have BO if the allele is BB and will have 50% BO and 50% OO if the allele is BB
so do you mean AO x OO cross and BO x OO cross lead to 50% O type blood and 50% A or B type? I understand punnett square, just clarifying your comment.
I have studied all the night before my test but i got 'o+' in my blood test.
Karl Landsteiner began a study in 1902 , to determine why fatalities occurred following some blood transfusions, his findings were the incompatibility between the blood of the donor and the blood of the recipient. From this work came the Landsteiner Classification of Blood Groups which classified blood into the four types A, B, AB and O.
Small correction
O A B AB
Learned a lot
1:42 If one parent has one B antigen and one o antigen, their group is B but the offspring can still be O (25% chance) if he inherits the o antigen from both parents
Yeah, which happened in my case lol.
Ustedes si que saben hacer su trabajo perfectamente, en verdad muchas felicidades al animador y a la información!!
Very good animation.
I'm O-negative. Which makes me a universal donor. This is why I am called every six months to donate. I'm happy to do do. Add to that...this video is highly simplified, and factually indiscript.
is that mean your blood type is O with Rhesus negative?
Good for you, you give blood. What is your criticism of this video, though? "Indiscript" isn't a word.
I love watching TED-ed videos. i learn a lot every time. but today I found it slightly misleading with some info given regarding type-O blood (B/A parents can form O kids for instance) and about white-blood cells recognition, but I'll catch up my readings to confirm my statements. Anyway keep on with the wonderful work.
Just want to advocate for people to give blood donation a try, if you can. The first time can temporarily leave you a bit woozy, but for most people, their bodies get used to it quickly. All blood types have their uses-I don’t bother giving whole blood because, as an AB+, my red blood cells aren't as useful as my platelets and plasma, so I specifically stick to donating those. No matter your blood type, there's someone out there who you can help by donating.
Consider giving it a try! It's one of those rare types of charity where you know what you are donating is going to someone in need-what other use would an organization have for blood products? Can't say the same about cash or even things like toy drives, sadly.
The American Red Cross often offers online gift cards in exchange for your donation, which is a nice extra incentive for some people. It's really a good thing to do, if you can.
Because regardless of how mainstream media pushes it, we are not all the same. We are the same race but different species
same race and the same species. Our genetic differences are not grouped together enough to constitute races. We are not the result of purpose-breeding
Good job deet 👏👏👏👏👏
The comments point out we might need a few more videos on genetics/heredity/taxonomy.