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This is not an entirely accurate statement, but it is generally true. It happens because sex-linked genes are located on the X chromosome only. Males have only one X chromosome (XY) and the corresponding Y chromosome from their fathers do not have genes for sex-linked traits, including color vision and proper blood clotting.
If a mother has normal color vision but carries a gene for color blindness on her other X chromosome, her genotype is Cc. If she has a daughter and that daughter inherits her mother's recessive gene, it is usually balanced by her father's X chromosome if he has normal color vision, and the daughter would be Cc like her mother.
However, although they are rare, a colorblind female is possible if her mother is a carrier (or is color blind, cc) and her father is colorblind also.
However, a son only inherits one X chromosome, so he is totally dependent on which X chromosome his mother gives him. His father's Y chromosome, which makes him male, does not have this gene on it. The son has a 50-50 chance of inheriting his mother's color blind gene, and if he does, he will be colorblind based on the gene inherited from his female parent. His male parent donated a Y chromosome, which has no genes for this trait on it, so the mother alone determines this trait in her sons.
What else can I help you with?
Why can females but not males be carriers of sexlinked genetic disorders?
Several genetic disorders are caused by genes on the X chromosomes.
Why can females but not males carriers of sex linked genetic disorders?
Several genetic disorders are caused by genes on the X chromosomes.
Who can be carrier of autosomal disorder?
females
Is sickle cell anemia a sexlinked trait?
Nope! The disease is equally in both males and females. This means that it is autosomal.
How is Fragile X Syndrome Inherited?
Males and females can be carriers, male carriers can only pass on to their daughters, they will be carriers as well have a premutation. Females can pass on to their sons or daughters, they will have the premutation or the full mutation.
Why can females but not males be carriers of sex linked genetic disorders?
Females have two X chromosomes, allowing them to be carriers of sex-linked genetic disorders on one X chromosome while having a normal allele on the other X chromosome. Males have only one X chromosome and one Y chromosome, so any genetic disorder on their single X chromosome will manifest as the disorder rather than being masked.
Is gender important for a eating disorder?
About 90% of eating disorders affect females.
What gender is mostly effected by eating disorders?
Females
Why are women carriers of Lesch-Nyhan syndrome?
Females are considered to be carriers. This is because females have another X chromosome without the mutation that prevents them from getting this disease. If a woman is a carrier, she has a 50% risk to pass on her X chromosome with the mutation.
What do you call a disorder in which females are the only ones who can be carriers?
a sex-linked, or X-linked disorder
How many males vs females will develop an eating disorder?
For eating disorders, 1 male with suffer for every 9 females. If there were 100 people with eating disorders, 10 would be men and 90 would be women.
In the case of sex linked traits only females can be carriers true or false?
False. In the case of sex-linked traits, specifically those linked to the X chromosome, both males and females can be affected, but only females can be carriers for X-linked recessive traits. Males have only one X chromosome, so if they inherit an X-linked recessive trait, they will express it rather than be a carrier. Females, having two X chromosomes, can carry one normal and one affected allele, making them carriers without expressing the trait.
