When genes are on the X or Y chromosomes, they are considered X-linked. True or false?

When genes are on the X or Y chromosomes, they are considered X-linked.

True or false?

Expert Solution

Ans:- FALSE

If a gene is present in X chromosome then only it is called x-linked gene.

If the gene is present in Y chromosome then it is called Y linked gene .

A condition is considered Y-linked if the mutated gene that causes the disorder is located on the Y chromosome, one of the two sex chromosomes in each of a male's cells. Because only males have a Y chromosome, in Y-linked inheritance, a mutation can only be passed from father to son.

Eg :- of y linked diseases are :-

Ataxia telangiectasia

Pattern blandness

X-linked is a trait where a gene is located on the X chromosome. Humans and other mammals have two sex chromosomes, the X and the Y. In an X-linked or sex linked disease, it is usually males that are affected because they have a single copy of the X chromosome that carries the mutation.

Examples of X-linked recessive disorders are hemophilia, color blindness, and Lesch-Nyhan syndrome (hypoxanthine-guanine phosphoribosyltransferase [HPRT] deficiency).

Sydney Mullin answered 1 year ago

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