How are sex-linked pedigrees different from autosomal pedigrees?

Autosomal traits would show Mendelian inheritance pattern but sex-linked traits would show criss cross inheritance.

Sex-linked trait is often controlled by gene present only on X chromosome, hence no corresponding allele is present on Y chromosome.

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luisvaschetto luisvaschetto · Answer 2 · 2022-03-25T12:49:29+01:00

Se_x-linked pedigrees are different from autosomal pedigrees because females inherit two X chromosomes, whereas males inherit only one X chromosome.

What is a pedigree?

A pedigree is a diagram showing the genealogical relationships in a given family (gene) tree.

Males inherit only one X chromosome instead of two as in autonomic chromosomes.

In consequence, Mendelian inheritance doesn't show that same pattern for the X chromosome in males.

In conclusion, se_x-linked pedigrees are different from autosomal pedigrees because females inherit two X chromosomes, whereas males inherit only one X chromosome.

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