Linked sex

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X and Y are sex chromosomes.Sex chromosomes are found within our reproductive cells and determine the sex of an individual.The two gametes came together during fertilization to produce a diploid individual.Theory states that genes on the sex chromosomes have stronger effects on sexual dimorphism than genes on the autosomes.Sex linkage applies to genes that are located on the sex chromosomes.A heritable trait is said to have a sex-linked mode of transmission when the gene responsible for the trait is located on one or both of the X chromosomes.

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Sex Linked Genes.

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NCBI Bookshelf.In humans, there are hundreds of genes located on the X chromosome that have no counterpart on the Y chromosome.Sex-linked diseases are passed down through families through one of the X or Y chromosomes.

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