The answer is; B
During metaphase I of Meiosis I , homologous sister chromosomes line up the metaphase plate in pairs. During anaphase I, the sister chromosomes of the pairs are separated and move to opposite poles. This way, the resulting daughter cells have half the chromosome number as the parent cell.
Answer:
human heart beats about 100,000 times in one day
The current secretary of the department of energy is Rick Perry.
Cladogram which are closest relatives to chordates also have the four characteristics