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What is X-linked and Y-linked inheritance?
These are traits that are linked to the sex chromosomes. Only males can get Y-linked traits because only males have a Y chromosome. (Note: it's a bit more complicated that even this explanatin, but this is the general idea) If the father has the X-linked trait he can only pass it down to daughters. If the mother has the trait, the daughter might not have the trait because the father's donated X-chromosome might have a gene that masks it. If a son gets donated an X-chromosome from the mother with the trait, he will definitely show the trait.
Is baldness a sex-limited or a sex linked trait?
men with higher testastorone are more likely to go bald
What gender is affected by sex linked traits?
Males are more likely to receive a sex-linked genetic trait because they have only one X chromosome. A certain trait on a woman's X may be covered up by another trait on her other X, men only have one X so they are stuck with whatever trait appears on it.
Are sex linked traits more or less likely to show up in males?
More likely in males.
A dominant x linked trait would be more common in males or females?
If the trait is recessive and on the male chromosome (Y), then it is impossible for females to get it since they do not possess a Y chromosome. If you meant a recessive sex-linked trait on the X chromosome (like male pattern baldness), then males are still more likely to get it since they only receive one X chromosome and if it is affected they would automatically have the trait (whereas females have 2 copies and would only have the trait if both parents passed on chromosomes containing the recessive allele.) Females can be carriers, though. If they are a carrier (have one affected X chromosome) for the trait then their male children would have a 50% chance of inheriting the trait and their female children would have a 50% chance of becoming carriers.
Why are males more likely than female to have a sex linked trait that is recessive?
Because they olny have one X chromosome.
How does linkage affect the inheritance of traits?
As in sex linkage?Well if a trait is sex linked then one gender may be more likely to have that trait than the other. For example, colour blindness is a trait that is linked to the X chromosome. So males are more likely to be colour blind than females because the colour blindness gene is recessive and males only have 1 X chromosome where as females have 2 X chromosomes. Though females may be carriers of the colour blindness chromosome, therefore potentially passing it on to their children (son or daughter).
Why are males momre likely than females to have sex-linked traits controlled by a recessive allele?
Males are more likely than females to have sex-linked traits controlled by a recessive allele because they only need one recessive allele to have the sex-linked trait. In contrast, females need two recessive alleles to have the sex-linked trait, so they have a lower probability of having it.This is best viewed with a Punnet square. Say the recessive allele that controls the sex-linked trait is Xa. XA is the dominant allele and Y is the male chromosome.Scenario #1If the mom is XA XA and marries a man with the sex-linked trait Xa Y, then none of the sons will have the sex-linked trait. All the daughters will have the mutant allele, but they will all be carriers with normal phenotypes since they only have one mutant allele.XaYXAXA XaXa YXAXA XaXa YScenario #2If the mom is XA Xa and marries a man with the sex-linked trait Xa Y, then there is a 50% chance that each child will have the sex-linked trait, regardless of sex.XaYXAXA XaXA YXaXa XaXa YScenario #3If the mom is a carrier XA Xa and marries a normal man XA Y, then there is a 50% chance each son will have the sex-linked trait. The daughters may be carriers, but none of them will have the sex-linked trait.XAYXAXA XAXA YXaXA XaXa YScenario #4If the mom has the sex-linked trait Xa Xa and marries a normal man XA Y, then all of the sons will have the sex-linked trait. The daughters will be carriers, but none of them will have the sex-linked trait.XAYXaXA XaXa YXaXA XaXa YScenario #5If the mom has the sex-linked trait Xa Xa and marries a man who also has the sex-linked trait Xa Y, then all of their children will have the sex-linked trait.XaYXaXa XaXa YXaXa XaXa YAs you can see, there are many more strikethrough outcomes (8) where the male has the sex-linked trait controlled by a recessive allele than bold outcomes (3) where the female has the sex-linked trait. Thus, males are more likely than females to have sex-linked traits controlled by a recessive allele.
What type of trait is hemophilia?
recessive sex-linked, X chromosome disorders, haemophilia is more likely to occur in males than females.
What is X-linked and Y-linked inheritance?
These are traits that are linked to the sex chromosomes. Only males can get Y-linked traits because only males have a Y chromosome. (Note: it's a bit more complicated that even this explanatin, but this is the general idea) If the father has the X-linked trait he can only pass it down to daughters. If the mother has the trait, the daughter might not have the trait because the father's donated X-chromosome might have a gene that masks it. If a son gets donated an X-chromosome from the mother with the trait, he will definitely show the trait.
Is baldness a sex-limited or a sex linked trait?
men with higher testastorone are more likely to go bald
What gender is affected by sex linked traits?
Males are more likely to receive a sex-linked genetic trait because they have only one X chromosome. A certain trait on a woman's X may be covered up by another trait on her other X, men only have one X so they are stuck with whatever trait appears on it.
A trait that can only be inherited by a male would be a?
Y-linked (sex-linked) - it would only be found on the Y chromosome - and therefore it is impossible for a female to inherit this.X-linked recessive traits are much more likely to occur in males, but it is still possible for a female to have them (if they have a defective gene on both their X chromosomes).
Why are sex linked traits observed more in males?
XX = Female XY = Male If there is a sex linked trait and it is recessive and will generally be on the X chromosome the statistical analysis will show that men will express this trait more often since they have only one X chromosome.
Are sex linked traits more or less likely to show up in males?
More likely in males.
Why do x linked conditions appear more frequently in males than females?
Because males have an X and Y chromosome. If the trait is X-linked (recessive), there is nothing to mask the expression. On the other hand if a woman has an x-linked recessive allele and a dominant one, the dominant trait is the one that will be expressed.
Why are males affected by recessive sex-linked traits more often than females?
Males more frequently express sex-linked traits because they only have one X chromosome. Since most of the genes on the sex chromosomes are on the X chromosome and very few are on the Y, so any recessive gene on the X chromosome will be expressed.
