You Are Examining the Effect of Maturation-Promoting Factor (MPF)in Sea

question 13

Multiple Choice

You are examining the effect of maturation-promoting factor (MPF) in sea urchin cells,which have a diploid number of 36.If you fuse a dividing sea urchin cell with a G₁ arrested oocyte,what would be the outcome?

• A)The G₁ cell would enter mitosis,but would likely arrest at the spindle checkpoint because the chromosomes have not been properly replicated.
• B)The G₁ cell would undergo mitosis and its daughter cells would each have 36 chromosomes.
• C)The G₁ cell would undergo mitosis and its daughter cells would each have 18 chromosomes.
• D)The G₁ cell would first go through S phase and then mitosis.Its daughter cells would have 36 chromosomes.