NEET BIOLOGY

Detailed explanation-1: -Complete answer: If an organism has 20 chromosomes, then the number of chromosomes the daughter cells have after mitosis is 20 because when a cell divides by the process of mitosis it produces two clone daughter cells having the same number of chromosomes (20) as the parent cell has.

Detailed explanation-2: -This type of cell division is involved in formation of gametes. The number of chromosomes is reduced to half at the end of meiosis. So, a cell having 20 chromosomes will give rise to four daughter cells having 10 chromosomes after meiosis.

Detailed explanation-3: -At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.

Detailed explanation-4: -If there are 20 centromeres in anaphase, there are 20 chromosomes within the dividing cell. As a result, each end pole of the dividing cell will receive 10 chromatids, with each chromatid becoming a chromosome for the cell.

Detailed explanation-5: -Hence, answer is ‘10 chromosomes’.