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Male pattern baldness is a recessive sex-linked trait on the X chromosome Xb A woman whose father had male pattern baldness marries a man with this trait What is the probability that any son boor?
Wiki User
∙ 14y ago
k so. i think you meant marries a woman? lol
k so its recessive carried on the X chromosome. Her father genetic make up is X^b Y. marries a woman who has the trait is X^H X^h (since its recessive and dominant overthrows recessive and she has the trait h). so use a punnet square. you should get..
two girls. one is afflicted, the other one carries the trait. two boys: a normal son, and an afflicted son.
Hope this helps!
Wiki User
∙ 14y ago
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Is blonde hair recessive or dominant?
Recessive gene of X chromosome. more common in men as they have only one x chromosome but in female there are 2 X chromosome. If one of X chromosome in female has this recessive gene, they become a carrier. If both the X chromosome in female has this gene, they show baldness
Why is pattern baldness more common in men than in women?
pattern baldness is an X-linked recessive gene. Since men only have one X chromosome (XY) and females have two X chromosomes (XX) it is easier for men to no posses the dominant trait that prevents pattern baldness.
Do you inherit astigmatism?
There's a probability, yes. The same as you can inherit baldness, or diabetes, etc etc.
Why are boys more dominant in baldness than females?
The term dominant is a misnomer here as the trait is not dominant or the number of women with the trait would be much higher. Pattern baldness is a sex-linked trait. Male pattern baldness alleles are present on the X chromosome which means that only one copy of the allele is required for a male to exhibit the trait (the y chromosome, being much smaller, doesn't have the gene locus for this trait). Females must have 2 alleles for the characteristic in order to exhibit the the trait.
Is there any relationship between your hair length and your life span?
The argument is silly. it ignores congenital baldness, admittedl rare, and the normal recessive loss of hair with age.
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.
Is baldness quickened by hair length or long hair?
No. Since hair grows from the root, the length of the hair makes no difference. Baldness is caused by a number of factors which are only partially understood; but the primary one is genetics.Because the main gene that determines baldness is located on the X chromosome, men (who only have one copy of that gene, good or bad) are far more likely to be affected by baldness. And in general, men wear their hair much shorter than women do.
What is an example of a trait inside your body that is affected by your genes?
Male pattern baldness is a common genetic condition passed through the X chromosome that a man gets from his mother.
An example of a sex-linked trait?
The best known examples in humans are color-blindness and muscular dystrophy. Males are the ones that are the most vulnerable because the Y chromosome is shorter than the X chromosomes that females have.
Is it possible for a female to inherit a sex linked trait?
Males carry one sex-linked trait. Females, carry most of the rest. Sex-linked traits, other than gender, are almost exclusively associated with the X chromosome. That is why it is sometimes said that sex-linked traits are carried by females, but that is not exactly right. It is not as simple as that, so read on. Short Explanation: There are just over a thousand genes on the X chromosome and about 26 on the Y. Of the 26 on the Y, 9 relate to sperm and one (SRY) relates to male anatomy, the others involved in general tasks. Just the fact that there are almost a hundred times more genes on the X chromosome means that traits related to the X, and variations in those traits, are far far more common. In fact, it is even more exclusive to the X than numbers suggest. Sex-linked traits are those that can only be passed along from the father and not the mother or from the mother and not the father. Obviously, males do carry and pass on sex-linked traits, just not very many. Gender can only be passed along from the father, along with genes related to sperm. Females pass on to the male offspring a larger number of traits, (such as some color blindness and male pattern baldness) which have no counterpart in the Y chromosome. More: Males have an X and a Y chromosome and females have two X chromosomes. Because the Y chromosome is smaller than the X with far fewer genes, there are genes carried only on the X and only gotten from the mother. That does not mean that all males have Y chromosomes that are the same. Overwhelmingly though, the absence of the set of genes on the Y chromosome results in the corresponding genes on the X chromosome being expressed, in particular all of the X-linked disorders of a gene of an X chromosome in a male do not have a second X gene that can be expressed to compensate. Thus, there are a set of sex-linked traits that can only come from the mother. (Color blindness and male pattern baldness are the two most discussed examples.) A male offspring (son) has the same Y chromosome as the father and hence any traits influenced by that chromosome. A female offspring (daughter) has the same X chromosome as the father and hence any traits influenced by that chromosome. A recessive gene on the X from the father will not usually be expressed in a daughter, but a dominant gene on the X from the father will be expressed in the daughter. For a female to inherit a trait associated with an X-chromosome recessive gene, there must be two copies, one from each parent. Aside: The issue of gender-connected inherited traits has much more complexity than this simple discussion can address. For example, not all of the so-called male characteristics are carried on the male (Y) chromosome. The expression of genes on other chromosomes, from both the mother and father, is influenced by genes on the Y chromosome or simply by the absence of two X chromosomes. The reader should investigate further. Caveat: This discussion applies to humans and other mammals with the XX/XY sex determination system. See related links. Fun Fact: A woman discovered that the Y chromosome was male. While studying worms, in 1905, Nettie Stevens at Bryn Mawr College identified the Y chromosome as the determining factor in gender.
Is baldness passed from your mother or father?
The gene for baldness is inherited from the mother .
What is the medical root word for baldness?
Alopecia is the medical root word for baldness. Baldness refers to the condition of having no hair on top of the head.
