Anaphase I begins when the two chromosomes of each bivalent (tetrad) separate and start moving toward opposite poles of the cell as a result of the action of the spindle. Notice that in anaphase I the sister chromatids remain attached at their centromeres and move together toward the poles.
D) because those birds are scavengers and therefore there will be competition in finding food and then to fight off the other birds so that you can get the food first.
Answer:
Puppies from the same litter commonly share 50% of their genes (on average.) Each litter mate randomly inherits 50% of its genes from his father and the other 50% from his mother. The only thing here is that they do not necessarily the same 50% from each
Explanation:
