Genetics Quiz: Sex Chromosomes and Inheritance Patterns

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Questions and Answers

True or false: the X and Y chromosomes share no genes.

  • True
  • False (correct)

True or false: the Y chromosome has no genes.

  • True
  • False (correct)

An XX individual who has a particular mutation on one of their X chromosomes is expected to pass the mutation on to whom?

  • All of their daughters and all of their sons
  • Half of their daughters
  • Half of their sons
  • Half of their daughters and half of their sons (correct)

An XY individual who has a particular mutation on their X chromosome is expected to pass the mutation on to whom?

<p>All of their daughters (A)</p> Signup and view all the answers

An XY individual who has a particular mutation on one of their autosomes is expected to pass the mutation on to whom?

<p>Half of their daughters and half of their sons (D)</p> Signup and view all the answers

Nondisjunction occurs in meiosis when:

<p>Homologous chromosomes or sister chromatids do not separate during anaphase (C)</p> Signup and view all the answers

Which of the following would be clear evidence that a gene is located on a sex chromosome?

<p>Only one sex exhibits the trait associated with the gene. (D)</p> Signup and view all the answers

An individual whose genotype can be described as 45X:

<p>Has 22 pairs of autosomes, and one X chromosome (B)</p> Signup and view all the answers

Which of the following, by itself, definitively determines a person’s biological sex?

<p>None of the above (D)</p> Signup and view all the answers

Evolutionary biology has always been an integrative discipline. Which of the following was NOT an important influence on Darwin’s thinking?

<p>The structure of DNA suggesting that all species have a common ancestor. (D)</p> Signup and view all the answers

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