AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cell that has 68 chromosomes undergoes mitosis. How many chromosomes does each of the 2 daughter cells have?
A
68
B
136
C
34
D
23
Explanation: 

Detailed explanation-1: -At this point, nuclear division begins, and the parent cell is divided in half, forming 2 daughter cells. Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes.

Detailed explanation-2: -After meiosis II, when each parent cell gets divided into two gametes each gamete cell contains 23 chromosomes. In this phase, each gamete remains haploid in nature. At the end of meiosis II, each cell will have the half number of the actual chromosome i.e. 23 chromosomes.

Detailed explanation-3: -In this simple example, a diploid body cell contains 2n = 2 chromosomes. One chromosome came from mom and one from dad. In humans, 2n = 46, so 23 came from mom, and 23 from dad.

Detailed explanation-4: -Telophase II and Cytokinesis In humans, meiosis produces genetically different haploid daughter cells, each with 23 chromosomes that consist of one chromatid.

There is 1 question to complete.