NON-MENDELIAN GENETICS: SEX-LINKED TRAITS | SEX INFLUENCED TRAITS | SEX-LIMITED TRAITS | SCIENCE 9
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- čas přidán 24. 08. 2024
- 2:03 Sex-linked traits overview
3:16 Genetic table of color blindness
4:21 Sample Problem 1 (color blindness)
5:46 Genetic table of Hemophilia
6:24 Sample Problem 2 (Hemophilia)
4:15 Try it activity (sex-linked traits)
8:06 Sex-Influenced Traits overview
8:42 Genetic table for Baldness
9:26 Sample Problem 3 (Baldness)
11:00 Try it activity (sex-influenced traits)
11:15 Sex Limited traits overview
Not all traits are controlled by alleles found in autosomes. There are traits governed by the sex chromosomes.
These traits are called sex-linked traits.
Sex-linked traits are recessive These are traits that are found on either one of the sex chromosomes.
Sex-linked traits affect both males and females. But in some cases, one particular sex is more prone to have a sex-linked trait.
A sex-linked trait is a trait genetically determined by an allele located on the sex chromosome. A trait that is determined by the allele on the X chromosome is particularly described as X-linked whereas that trait determined by the allele on the Y chromosome is said to be Y-linked.
SEX-INFLUENCED TRAITS
- are autosomal traits that are influenced by sex hormones
- It is also a recessive trait
One of the examples of SEX-INFLUENCED TRAITS is baldness and it is influenced by the hormone testosterone.
And since males have a higher level of testosterone compared to females If a male has one recessive allele, he will show that trait, but it will take two recessives for the female to show that same trait.
Sex-limited traits are those traits limited to only one sex. Lactation is a good example of a sex-limited trait that is exclusively among females.
Thank you po, ma'am! ❤❤❤
Thank you for your appreciation
Asan po yung link ng part 3 ? 😊
Hi po, ano po answer nito mam? Salamat po.A bald female married a man who doesn't have any traits of baldness. What will be the genotype and phenotypes of the offspring? How many percent of their offspring will be bald?
You can use the punnet square to get the answer 😊❤️
Keep in mind that for a female to get bald both sex chromosomes must be bald
Hello po, bali po ano po ba ang symbol na gagamitin pag no traits of baldness si male po?
Both capital B 😊
@@MaamMicamaam nag message po ako sa fb page nyo po sana mapansin po.. salamat❤