Question

How do daughter cells obtain their DNA? A: The DNA in the parent cell nucleus makes a copy of itself and is then split between the two daughter cells during mitosis. B: Original chromosomes from the parent cell split in half and then each half goes to one of the two daughter cells during the cell cycle. C: The DNA in the parent cell nucleus makes a copy of itself and is then split between the two daughter cells during meiosis. D: Original chromosomes from the parent cell split in half, and then each half goes to one of the two daughter cells during cytokinesis.

Answer 1

The answer is A

Step-by-step explanation:

Mitosis is a process of cell division during which the parent cell divides into two identical daughter cells. So during mitosis the DNA of parent cell is not split and passed to the daughter cells instead they first duplicate their DNA and then pass one copy to each daughter cells.

Answer 2

The right answer is A.

During the cell cycle, the amount of DNA in the nucleus varies: it doubles during interphase, allowing the daughter cells to receive an amount equal to that initially present in the mother cell. During mitosis, the daughter cells thus receive the same number of chromosomes, which is equal to that of the mother cell. Mitosis is a consistent mode of reproduction. The number of chromosomes, which is characteristic of the species (46 in the human species, 23 pairs), is therefore kept constant during successive cell cycles.