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Chromosomes and Phenotype

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alexoniate's version from 2016-02-17 14:18

Summary

The chromosomes on which genes are located can affect the expression of traits. Two alleles of autosomal genes interact to produce phenotype. Genes on the
sex chromosomes are expresses differently in male and females of many species. In humans, males are XY and females are XX. Males only have one copy of
each gene found on the sex chromosomes, so all of those genes are expresses in their phenotype.

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Question Answer
Carrierdoesn't show disease symptoms, but can pass disease-causing alleles to offspring
Sex-linked genesgenes located on sex chromosomes
X chromosome inactivationone of the 2 x chromosomes is turned off and is not expressed
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