Can someone tell me some y-linked traits?

Question

y-linked traits could be carried by females but only males develop it (there are also exceptional females who could develop it). hairy ears is a y-linked trait. can anyone give me more y-linked traits and explain them?

thanks in advance

Answer 1

the three most known are baldness, hairy ears, and color blindness. you will probably never meet a bald color blind woman with hairy ears :)
that would be super rare!
its b/c theyre recessive. the female will get the trait from her father but she wont exhibit it, she'll only be a carrier. she will however, most likely pass it on to her son, who will then exhibit the trait.
say that aa exhibits the trait and AA is clean, while Aa is a carrier, in this case only women can be carriers.
so assume that a grandfather was bald. he would then have the chromosomes: XaY[nothing] b/c this specific trait can only be carried on the X chromosome. his daughter then was XAXa, so the dominant allele prevailed, so she was only a carrier, but she happened to have son, and not knowing the father's genotype, after completing the [2] Punnet square[s], we are able to determine that there is a 50% chance that the SON will have the XaY genotype, thus being bald. [assuming of course, that we know its a son, then 50% in each Punnet square]. if we dont know its a boy, then 50% chance of a bald son altogether, leaving 25% in each Punnet square [depending on the father's genotype, XaY or XAY].

punnet squares:
for XAXa and XAY [mother carrier, father clean]:

__ |XA__ | Y
XA|XAXA|XAY
Xa|XAXa |XaY <=yup, this one's bald!

&&

for XAXa and XaY [mother carrier, father bald]:

__ |Xa__ | Y
XA|XAXa|XAY
Xa|XaXa |XaY <=yup, this one's bald too!

actually, now that i think of it, the father's genotype really doesn't matter when you're talking about a son [with a Y chromosome] if we were talking daughters, then yeah, but otherwise... hm. i only just thought of that. lmao. :)

hope i helped!!
:)

Answer 2

Hi there,
There are many factors that can attribute to hair recession or massive hair fall and you need to find out which one exactly is responsible for the problem you are having now. Of course male pattern baldness is still the most common cause, but, for instance, if you are a woman things are deinitely different! This is the reason why you will need to really dig down and see the source of your problem.

Other causes of hair loss may include (both in men and women): severe mental or emotional stress, excessive use of coloring or bleaching agents, traction alopecia or excessive strain on the scalp due to braiding or corn rowing, hormonal changes, alopecia areata or hair loss due to autoimmune diseases, and many more. Each of these conditions will require a different approach in order to achieve success regardless of whether you're going to be using conventional or natural methods.

In my opinion it's much better to use natural methods as opposed to conventional ones, they're cheaper, have less to no side effects, and often more effective.

A good way of regaining your full head of healthy natural hair is well described on this guide: http://hairagain.toptips.org
Bye

Answer 3

The only one I'm aware of is the hairly earlobe thing, but females do not carry Y-linked traits because females have no Y chromosome.

You may be confusing them with x-linked traits (such as haemophilia) with occur more frequently in males because they are on the X-chromosome and are recessive in females only.

Answer 4

Hemophilia is a good example (both men and women can be affected with the disease but men are at higher risk of getting it)

The dominant allele of the gene H allows blood to clot normally but the recessive allele h causes hemophilia ( a disease which makes it difficult for the blood to clot normally it is only carried on the X chromosome)
Women have three genotypes of the disease
HH - Normal
Hh - Carrier
hh - Hemophiliac.
(all of which are carried on their two X chromosomes)
where as men only have two
H - Normal
h - Hemophiliac
(Which are only carried on the one X chromosome)
This disease is inherited based on a person's gender.

I hope this helps

Answer 5

Males carry the x chroma which is the major decision maker in a lot of the baby's development, hair color and eyes to the deciding factor in the baby's sex.It's the way it is, but is also the luck of the draw.

Answer 6

Male pattern baldness is the most well known of these. Mother's father bald? More than likely you will also be bald if male. There is a female baldness known as alopecia, but quite rare and not linked to mpb.

Answer 7

Male pattern baldness--there are not many y-linked traits. Most are on the X.

Answer 8

colour blindness, as it is passed from grandfather to his daughter, then the daughter passes it to her children. it is a recessive disorder though, so females usually will not get the disorder unless her father carries the same allele on his X chromosome.

Answer 9

Wow, 1 week ago