Sex-Linked Genes Video Lessons

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Problem: Why are X-linked traits more commonly expressed in males than in females? Select the TWO answers that are correct. A. Males have two X chromosomes, making them twice as likely to have the phenotypeB. Males have only one X chromosome, whereas females have two C. Females have only one X chromosome, whereas males have two D. Females have two X chromosomes, so one can mask the effects of the other. E. Males have an X and a Y chromosome, and females have two Y chromosomes

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X-Linked Traits: expressed more in males than in females

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Problem Details

Why are X-linked traits more commonly expressed in males than in females? Select the TWO answers that are correct. 

A. Males have two X chromosomes, making them twice as likely to have the phenotype

B. Males have only one X chromosome, whereas females have two 

C. Females have only one X chromosome, whereas males have two 

D. Females have two X chromosomes, so one can mask the effects of the other. 

E. Males have an X and a Y chromosome, and females have two Y chromosomes

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