Quiz 22

Which of the following proteins regulate the intrinsic pathway of apoptosis? Choose all that apply. A. Bax B. BAD C. FAS D. Caspase 9

A. Bax D. Caspase 9

Which of the following can cause apoptosis? Choose all that apply. A. Excessive DNA damage in somatic cells. B. A motor neuron in the developing spinal cord fails to receive survival factors from its targeting muscle cell. C. Acute injury. D. Prolonged cell cycle blockage.

A. Excessive DNA damage in somatic cells. B. A motor neuron in the developing spinal cord fails to receive survival factors from its targeting muscle cell. D. Prolonged cell cycle blockage.

Which of the following statements about apoptosis is True? Choose all that apply. A. Bax and Bak promote apoptosis by binding to procaspases in the apoptosome. B. Apoptosis is induced by the release of cytochrome c into the cytosol from mitochondria. C. Binding of Fas to its receptor triggers the formation of death-inducing signaling complex (DISC), which then activates caspase 9. D. Cells that constitutively express Bcl2 will be more resistant to undergo apoptosis.

B. Apoptosis is induced by the release of cytochrome c into the cytosol from mitochondria. D. Cells that constitutively express Bcl2 will be more resistant to undergo apoptosis.

The formation of a bivalent during meiosis ensures that _______. A. recombination will occur between identical sister chromatids. B. one chromatid from the mother and one chromatid from the father will segregate together during meiosis I. C. all four sister chromatids remain together until the cell is ready to divide. D. the sex chromosomes, which are not identical, will line up separately at the metaphase plate during meiosis I.

C. all four sister chromatids remain together until the cell is ready to divide.

During sexual reproduction, novel mixtures of alleles are generated. This is because ______. A. in all diploid species, two alleles exist for every gene. B. every gamete produced by a diploid individual has several different alleles of a single gene. C. during meiosis, the segregation of homolog chromosomes is random such that different gametes end up with different alleles of each gene. D. a diploid individual has two different alleles for every gene.

C. during meiosis, the segregation of homolog chromosomes is random such that different gametes end up with different alleles of each gene.