Alleles undergo segregation is
present in the mitosis. The answer is B. The first stage is prophase. The
nucleolus disappears and the two centrosomes begin to form the mitotic spindle.
The spindle xtends between two opposite poles f the cell. Next is the metaphase.
The centromeres of the chromatid pairs align at the center of the miotic
spindle. Then anaphase, the centromeres will split that separates the chromatid
pair. In here, alleles are formed. They are now called chromosomes. The last
phase is the telophase. The chromosomes will then form a thread-like chromatin
and for ache envelope, a nucleoli appears.
{I got this from online hope it helps}The earliest known mammals were the morganucodontids, tiny shrew-size creatures that lived in the shadows of the dinosaurs 210 million years ago. They were one of several different mammal lineages that emerged around that time. All living mammals today, including us, descend from the one line that survived. So yeah it’s true
Steam fog is what you're looking for
