Chromosomal Theory of Inheritance Video Lessons

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Problem: Human sex chromosomes, X and Y, _____.A. Have the same lociB. carry the same number of genesC. are homologous only at the pseudo-autosomal regionsD. only carry sex genes

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Humans are diploid organisms whose sex is determined by the pair of sex chromosomes present within them. These sex chromosomes are the 23rd pair of chromosomes and are shown as either X and Y chromosomes, or two X chromosomes.

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Problem Details

Human sex chromosomes, X and Y, _____.

A. Have the same loci

B. carry the same number of genes

C. are homologous only at the pseudo-autosomal regions

D. only carry sex genes

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What scientific concept do you need to know in order to solve this problem?

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