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Exam 7: X-Linked Genes and Sex Chromosomes

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Question 21

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Which of the following factors can impact sex development? Please select all that apply.

A) Mitosis
B) Meiosis
C) Environment
D) Sex chromosomes

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Question 22

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Match the organism with the most appropriate statement regarding sex determination. -The male chromosome is smaller than the female chromosome

A) Human
B) Bird
C) Drosophila
D) Turtle

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Question 23

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Several steps have been hypothesized for the evolution of sex chromosomes. Put the steps in order, from oldest to newest. -Dosage compensation

Which of the following are true of epigenetic effects? Please select all that apply.

Match the organism with the most appropriate statement regarding sex determination. -Temperature is involved in sex determination

Sex is not always inherited.

Which of the following leads to gametes receiving incorrect numbers of sex chromosomes?

In human pedigrees, which characteristics are likely to underlie an inherited trait that appears in males more frequently than in females? Please select all that apply.

Match the organism with the most appropriate statement regarding sex determination. -Number of X chromosomes determines sex

The opsin genes that encode light receptors are on the Y-chromosome in humans, meaning that red-green color blindness is more likely to occur in males than females.

TDF is the major sex-determining component in mammals. What does TDF do?