In prophase I of meiosis in female Drosophila, studies have shown that there is phosphorylation of an amino acid in the tails of histones of gametes. 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) All proteins in the cell must be phosphorylated.
D) Histone tail phosphorylation prohibits chromosome condensation.
E) Histone tails must be removed from the rest of the histones.
A Mediterranean woodland in California shown during the cool moist season, when the herbaceous veget
(A) The male pelvis (android) is shaped like a funnel, forming a narrower outlet than the female. (B
The female reproductive system. (a) Sagittal section through the pelvis. (b) Top view of pelvic orga
Richard Wrangham’s “female-bonded” theory of intergroup competition was highly influential in our un
The stages of meiosis
Crossing over in prophase I increases genetic variation