You are looking through a microscope at onion cells and you see a cell with the sister chromatids lined up across the middle of the cell. what phase of mitosis are you observing?

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.