Genetics Quiz: Sex Chromosomes and Inheritance Patterns

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10 Questions

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

False

True or false: the Y chromosome has no genes.

False

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

Half of their daughters and half of their sons

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

All of their daughters

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

Half of their daughters and half of their sons

Nondisjunction occurs in meiosis when:

Homologous chromosomes or sister chromatids do not separate during anaphase

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

Only one sex exhibits the trait associated with the gene.

An individual whose genotype can be described as 45X:

Has 22 pairs of autosomes, and one X chromosome

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

None of the above

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

The structure of DNA suggesting that all species have a common ancestor.

Test your knowledge on sex chromosomes and inheritance patterns with this quiz. Questions cover topics such as gene sharing between X and Y chromosomes, gene presence on the Y chromosome, and the inheritance of mutations in individuals with XX and XY chromosomes.

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