What\'s the difference between sex-linkage, X-linkage, and Y-linkage? X-linked a
ID: 56054 • Letter: W
Question
What's the difference between sex-linkage, X-linkage, and Y-linkage? X-linked alleles are on the X chromosome; Y-linked alleles are on the Y chromosome; both are sex-linked. In mammals, females are XX and males are XY. Sex-linked traits are those that affect reproductive organs and other aspects of sexual reproduction. They are different names for the same thing. Very few genes are found on the Y chromosome. What is an autosomal trait? A continuous trait (one that takes many possible values). A discrete trait (one with distinct types only). A trait associated with a gene on a non-sex chromosome. A trait associated with a gene on a sex chromosome (either X or Y).Explanation / Answer
The organisms like humans contain two sets of chromosomes. There is 23 pair of chromosomes in the humans, of which 23 are called autosomes and 1 pair is called allosomes or sex chromosome. The sex chromosomes include X and Y. in females two X chromosomes are present, while in males one X and one Y chromosomes are present.
5.
The genes that are located on sex chromosomes are called sex-linked genes. The characters that are coded by them are called sex-linked traits. There are two types of sex chromosomes, which includes X and Y. X-linked genes are more common than Y-linked genes. The Y-linked are expressed only in males because this chromosome is present only in males.
Hence, the correct option among the following is the 1st description.
6.
The genes that are located on autosomes and code for a characters are called autosomal traits.
Hence, the correct option is the trait associated with a gene on non-sex chromosome.
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