In prophase I of meiosis in female Drosophila, studies have shown that there is phosphorylation of an amino acid in the tails of histones. A mutation in flies that interferes with this process results in sterility. Which of the following is the most likely hypothesis?
A)These oocytes have no histones.
B)Any mutation during oogenesis results in sterility.
C)Phosphorylation of all proteins in the cell must result.
D)Histone tail phosphorylation prohibits chromosome condensation.
E)Histone tails must be removed from the rest of the histones.

Question

Quizplus · Accepted Answer

The phosphorylation of histone tails in prophase I of meiosis is important for chromosome condensation and proper segregation during meiosis. A mutation that interferes with this process would likely result in improper chromosome condensation and segregation, leading to sterility. Choices A, B, C, and E do not accurately reflect the observed phenomenon in female Drosophila during meiosis.

In Prophase I of Meiosis in Female Drosophila, Studies Have