A student is examining a whitefish blastula cell under a microscope. Based on his observations, the student proposes that the whitefish blastula cell is in interphase.
Which of the following pieces of evidence would best support the student’s claim?
A
The mitotic spindle is fully assembled, with its poles at opposite ends of the cell.
B
Sister chromatids have separated and are moving toward opposite poles of the cell.
C
The genetic content of the cell exists as dispersed chromatin.
D
A cleavage furrow has formed on the cell’s surface.
