Janine LeBlanc-Straceski
Janine LeBlanc-Straceski
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Shygu2 Merrimack College SEA Symposium 2022
Shygu2 Merrimack College SEA Symposium 2022
zhlédnutí: 48

Video

Mitochondria Lab Graphing Tutorial Video
zhlédnutí 156Před 6 lety
For Google Sheets. How to calculate Average and Standard Deviation. How to create a bar graph with error bars corresponding to the StdDev.
OSMOSIS LAB Chart Instructions 720p
zhlédnutí 1,1KPřed 6 lety
This video shows how to make a a basic chart or graph from data in a google sheets file.
OSMOSIS LAB Formulas in Table Instructions 720p
zhlédnutí 539Před 6 lety
This tutorial shows how to use use Google Sheets to record raw data and calculate % change in weight and volume.
Clyclosis in Elodea 100x magnification
zhlédnutí 1,3KPřed 6 lety
Clyclosis in Elodea 100x magnification
Pollen Rotation Movie Airyscan
zhlédnutí 102Před 7 lety
Zeiss LSM 880 rotating image of pollen grain
BA in Biology
zhlédnutí 821Před 7 lety
BA in Biology
Unit 13B A Mapping Problem
zhlédnutí 416Před 8 lety
Unit 13B A Mapping Problem
Unit 14C Transduction and Transformation
zhlédnutí 580Před 8 lety
Unit 14C Transduction and Transformation
Unit 15B Complementation Tests
zhlédnutí 2KPřed 8 lety
Unit 15B Complementation Tests
Unit 14A Bacterial Genetics Conjugation
zhlédnutí 891Před 8 lety
Unit 14A Bacterial Genetics Conjugation
Unit 14B Hfr Strains and Mapping
zhlédnutí 11KPřed 8 lety
Unit 14B Hfr Strains and Mapping
Unit 15A Viral Reproductive Cycles
zhlédnutí 310Před 8 lety
Unit 15A Viral Reproductive Cycles
Unit 13C Chromosome Number and Structure
zhlédnutí 502Před 8 lety
Unit 13C Chromosome Number and Structure
Unit13A Linkage and Recombination
zhlédnutí 4,7KPřed 8 lety
Unit13A Linkage and Recombination
Unit 12 Extranuclear Inheritance
zhlédnutí 2,2KPřed 8 lety
Unit 12 Extranuclear Inheritance
Unit 11B Variations on Mendelian Inheritance
zhlédnutí 454Před 8 lety
Unit 11B Variations on Mendelian Inheritance
Unit 11A Sex Determination and Sex Linkage
zhlédnutí 892Před 8 lety
Unit 11A Sex Determination and Sex Linkage
Unit 10C Pedigree Analysis
zhlédnutí 467Před 8 lety
Unit 10C Pedigree Analysis
Unit 10B Mendelian Genetics
zhlédnutí 483Před 8 lety
Unit 10B Mendelian Genetics
Unit10A Mitosis, Meiosis & Mendel
zhlédnutí 567Před 8 lety
Unit10A Mitosis, Meiosis & Mendel
Unit9E CRISPR CAS9
zhlédnutí 367Před 8 lety
Unit9E CRISPR CAS9
Unit9D Personalized Medicine
zhlédnutí 296Před 8 lety
Unit9D Personalized Medicine
Unit9C Genetics of Cancer
zhlédnutí 398Před 8 lety
Unit9C Genetics of Cancer
Unit9B Biotechnology
zhlédnutí 376Před 8 lety
Unit9B Biotechnology
Unit9A Genomics
zhlédnutí 516Před 8 lety
Unit9A Genomics
Unit8C Transposable Elements
zhlédnutí 4,8KPřed 8 lety
Unit8C Transposable Elements
Unit8B Immunogenetics
zhlédnutí 2,4KPřed 8 lety
Unit8B Immunogenetics
Unit8A Homologous Recombination
zhlédnutí 728Před 8 lety
Unit8A Homologous Recombination
Unit7G DNA Mutation and Repair Triplet Repeat Expansion
zhlédnutí 1,3KPřed 8 lety
Unit7G DNA Mutation and Repair Triplet Repeat Expansion

Komentáře

  • @ValdrinBellanica
    @ValdrinBellanica Před 3 měsíci

    In which book , are these lectures ?

  • @adyakoul7060
    @adyakoul7060 Před 9 měsíci

    Thank you so much for this explanation. It was very straight-forward and helpful! Please keep making videos!

  • @shanthala1345
    @shanthala1345 Před 11 měsíci

    wow thank u

  • @joshuabowman7210
    @joshuabowman7210 Před rokem

    There is not much talk about the importance of healthy motor molecules to help with Mitosis, Meiosis and Mendel. Like the signal switch to turn on by a motor molecule of Mitosis

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před rokem

      Correct. That is an active research topic for the cell biology of mitosis, meiosis, all of the special cases (such as asymmetrical cytokinesis) and all the ways it can go wrong (as in non-disjunction).

    • @joshuabowman7210
      @joshuabowman7210 Před rokem

      @@janineleblanc-straceski3181 i love to talk to you more if possible about such a subject. i have no degree i cant afford college yet. I just a deep passion for helping Cancer patients that dose more good than bad some day. so the health of the motor molecules leans alot on the ATP for them to get around and Cancer has alot of factors one is it is a uncontrolled situation which is connected to the Mitochondria they activate caspase which helps with Apoptosis . so in short test the health of the motor molecules mainly the Kineasen and Dynien can be tested because the motility of the mitochondria is as far as my studies show done only by them. There is more i will see if i can chat with you more first

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před rokem

      @@joshuabowman7210 Since you do have access to a computer, try this: www.edx.org/

    • @joshuabowman7210
      @joshuabowman7210 Před rokem

      @@janineleblanc-straceski3181 thanks

  • @joshuabowman7210
    @joshuabowman7210 Před rokem

    Very interesting statement saying Viruses can transfer genetic material from one bacteria to another i usually thought viruses try to take control of there own RNA to spread there genitic material ? Can viruses transfer of Mitochondria DNA one to another ?

  • @binayaswal9158
    @binayaswal9158 Před rokem

    The only video that helped. Thanks a lot. :)

  • @larissaparker9483
    @larissaparker9483 Před rokem

    Thank you. It was very nice talk and a good summary about BRCA1, BRCA2

  • @janineleblanc-straceski3181

    There is an omission around 6:12. In the transition to the next slide I neglected to emphasize that the table contains data from the F2 generation - the offspring of the mating between the heterozygous female fly and the hemizygous male with all three recessive mutant alleles.

  • @yao6338
    @yao6338 Před 2 lety

    I can't thank you enough for these videos!!!!!!!

  • @jaxwar5763
    @jaxwar5763 Před 2 lety

    This is quality content!

  • @anuradhawijethunga5880

    Thank you so much. I've been thinking of a way to find everything related to this topic in just one video. Thank you.

  • @Janula97
    @Janula97 Před 2 lety

    Thank you so much for this video! It helped me soooo much.

  • @febesaad9152
    @febesaad9152 Před 2 lety

    Where's your website?

  • @sanjalchaudhari2544
    @sanjalchaudhari2544 Před 3 lety

    Well explained and nice slides

  • @arkadipgoswami1718
    @arkadipgoswami1718 Před 3 lety

    Can you tell me which books should i use for bacterial genetics

  • @maarzoo2451
    @maarzoo2451 Před 3 lety

    Can you please tell us how all histone intract to each other in octamer and how h1 is bound

  • @maarzoo2451
    @maarzoo2451 Před 3 lety

    I have no words to thanks you You are save my life

  • @Momo-ew3oi
    @Momo-ew3oi Před 3 lety

    i seriously wish you were my professor

  • @Medtube-cs2qc
    @Medtube-cs2qc Před 3 lety

    Wow all of what i can say all the respect to you you made me understand the topic not memorize it with no understanding and forget it the next day at first i thought it's a pretty hard subject but your simplification of the topic with pictures showing us the bridges between the bacteria and the experiment that was done made me understand what's going on thank you so much please share more videos we need more people like you i'm an auditory person and love learning from watching videos you deserve a big like thx a lot again

  • @ayeyebrazof6559
    @ayeyebrazof6559 Před 3 lety

    Finally all DNA level structures well explained! No others videos like this one.

  • @chelsea8736
    @chelsea8736 Před 3 lety

    I'm late to the genetics party, but thank you so much for this resource! I was having trouble figuring out what was going on with Hfr gene mapping, but you illustrated it so well. Much appreciation to you!

  • @hirdeshkumar7027
    @hirdeshkumar7027 Před 3 lety

    which book are you using?

  • @menna1785
    @menna1785 Před 3 lety

    Thanks Prof.Straceski !

  • @portyu1269
    @portyu1269 Před 4 lety

    Very Good ! Thanks

  • @Marie-hu7xd
    @Marie-hu7xd Před 4 lety

    If I have the length of a protein given as the numbers of aminoacids, can I say that the corrisponding mRNA has a minimum length of the number of the aminoacids times 3? Or does the UTRs also have a set minimum length?

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 4 lety

      UTRs contain at the minimum the Kozak sequence for ribosome binding at the 5' end and the AAUAAA cleavage and polyadenylation site at the 3' end, and then the subsequent poly A tail (usually). I 'm not aware of any measurements of average or minimum length, but I'm sure there are some!

  • @Marie-hu7xd
    @Marie-hu7xd Před 4 lety

    Why doesn't the endonuklease cut just the tRNA out instead of cutting it with that extra bit of intron on it? Why the extra step with the exonuklease?

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 4 lety

      The “why” question is a tricky one. There is seldom a satisfying answer. The short answer is that there is no good explanation that has been elucidated right now.

    • @Marie-hu7xd
      @Marie-hu7xd Před 4 lety

      @@janineleblanc-straceski3181 Hahaha fair enough! Thank you so much for your amazing lectures and also replying to all questions! I really appreciat it <3

  • @Marie-hu7xd
    @Marie-hu7xd Před 4 lety

    why does the DNA only gets gut between histones? What prevents it from beeting cut at the curled around parts? Also Thank you for these awesome videos!

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 4 lety

      That is a great question. As DNA is replicated - or transcribed - nucleosomes dissociate from the DNA and reform behind the polymerase. There's a lot going on at the replication fork and the transcription bubble!

  • @user-rj9hi2hd6e
    @user-rj9hi2hd6e Před 4 lety

    U r aweersssome

  • @janineleblanc-straceski3181

    I’m glad you found these helpful.

  • @user-rj9hi2hd6e
    @user-rj9hi2hd6e Před 4 lety

    Mam u r really aweeeeeeeeesssssoooommmmmeeee

  • @user-rj9hi2hd6e
    @user-rj9hi2hd6e Před 4 lety

    U r really aweeeeeeeeeeessssssssooooooooommmmmmmmeeeeee

  • @turcuadina
    @turcuadina Před 4 lety

    I love your course! Thank you for sharing! I just wish the music in the background was absent. This one is quite distracting.

  • @ammarahmehak9986
    @ammarahmehak9986 Před 4 lety

    I like the explanations

  • @user-ry4ew6cj9y
    @user-ry4ew6cj9y Před 4 lety

    It very good Hello Dr LeBlanc Please 🙏 I need this unit 14B by book or PDF

  • @somashreechakraborty2582

    One of the most useful videos on this topic!

  • @kitsand
    @kitsand Před 4 lety

    Thank you for the posting these lectures. Have watched each one and found them to be very helpful.

  • @ncertscience767
    @ncertscience767 Před 5 lety

    very good explanation

  • @kitsand
    @kitsand Před 5 lety

    Thanks for posting these vidoes, doc. Very helpful.

  • @zphuo
    @zphuo Před 5 lety

    It means that the length of chromosome will become longer and longer and include much more useless information?

  • @zphuo
    @zphuo Před 5 lety

    @4:00 very good explanation about where and how to choose position to split the chromosome.

  • @kamelibrahim9240
    @kamelibrahim9240 Před 5 lety

    what a beautiful explanation :)

  • @RajeshMoturu
    @RajeshMoturu Před 5 lety

    Thanks a lot for this playlist, its quick way to brush up the concepts. Is there any possibility to get these presentation slides from any of your sites? Thanks in advance.

  • @ankitohlan4747
    @ankitohlan4747 Před 5 lety

    Firstly thankyou mam , in first video lecture u told about ppts so can u provide link for that 😊

  • @gauravgaur3477
    @gauravgaur3477 Před 5 lety

    Best lecture on transposons on whole youtube

  • @kareemhewidy2397
    @kareemhewidy2397 Před 6 lety

    what are the protiens responsible for adding or putting the newly synthesized dna aroung histone is this occur at the same time when the new stard is just synthesized a histone protien in added?

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 6 lety

      That is a good question! There probably are some chaperone proteins. The newly synthesized DNA is immediately rewound around nucleosomes. Old nucleosomes are stripped off the template, broken down into half-nucleosomes that retain their epigenetic modifications (methylation, acetylation etc.) and mixed with brand new histones. Enzymes recognize the half- modified nucleosomes and duplicate the modifications on the new histones. (Re-call that a nucleosome core is an octamer of 2 each of H2A, H2B, H3 and H4.) That is how epigenetic modifications are passed from mother to daughter cells.

  • @SarahmollyBC
    @SarahmollyBC Před 6 lety

    thank you so much. you are a saver

  • @marwanmohamed6575
    @marwanmohamed6575 Před 6 lety

    what signal the cell or tell the cell which region of dna it need to form a protien specific for the antigen what kind of signaling molecules involved here ofcourse the cell doesnt try all the possible 28 million outcome untill some one function xD

  • @marynowak4726
    @marynowak4726 Před 6 lety

    I have a question about the Ames test. Does the test only work with histidine revertants, or is it possible to use others?

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 6 lety

      The revertants are dependent on the mutation in the original strain of bacteria used. For example, Salmonella typhimurium has two different his- mutants that are used in the Ames test. Amino acid biosynthetic operons typically encode several enzymes that work in a pathway to synthesize the amino acid. Mutations in hisD and hisG genes have point or -1 frame shift mutations to enable the researcher to detect different mutagenic properties of a substance.

  • @palb2gene444
    @palb2gene444 Před 6 lety

    Thank you for posting. Surprised that PALB2 (which was almost named BRCA3 but is more like BRCA1.5 since it putatively joins BRCA 1&2 at some point) was not mentioned, especially since pathogenic mutations in that often results in cancer or prophylactic surgeries. Was looking for how it functions & any partial redundancies it may have w/ RAD 51 (C&D?) in conjunction w/ BRCA2 in HR/DSB repair...

    • @janineleblanc-straceski3181
      @janineleblanc-straceski3181 Před 6 lety

      I may add some details in a future version of the video. There is a good Wikipedia entry on it.

    • @palb2gene444
      @palb2gene444 Před 6 lety

      Your video is still helpful for many. Esp those working backwards from a genetic diagnosis.The clinical recommendations for people who hold DS repair gene pathogenic mutations are evolving (increasing) relatively rapidly for breast, ovarian, pancreatic (&?). The role of PARP inhibitors may also be an interesting upper level undergrad-ish level discussion, highlighting the functions of deleterious version of these genes. Even if students don't end up having big careers in medicine/biotech, having the ability to assimilate these concepts can add up to potentially life saving personal decisions. [read: finally, my education is paying off more than any science job I've had, LOL]

  • @seoheejin9124
    @seoheejin9124 Před 6 lety

    First, I really thank you for making this useful video. I watched this video from South Korea, and I'm highschool student interesting in brca gene. I know human use some methods when reparing DNA, and I thought that the one you mentioned in video is HR. Is it right? If it is right, if we use brca gene for dna reparing, does it always do its role with HR? Why it do not use NHEJ? If we have gene mutation either brca 1or brca 2, not both, is the possibility of cancer same?And what are other reasons causing dna mutation? If a person is inherited mutated gene, why breast cancer(or other else) happend in realtive old age, not in childhood?I'm sorry for my poor english...But I would really appreciate if you would leave some comments with my questions. Thank you!!

    • @palb2gene444
      @palb2gene444 Před 6 lety

      Very cool that you're studying this in high school. Was looking for words to respond to your question when I saw this in wiki: "When a double strand DNA lesion is repaired by NHEJ there is no validating DNA template present so it may result in a novel DNA strand formation with loss of information." That loss of information can still result in the production of a different protein or truncation of the protein that was supposed to have been produced. In individuals well past the embryonic stage [meaning anyone who can read this ;-) ], there are limitations to delivery of any repair mechanisms.