AP BIOLOGY

CELL DIVISION

THE CELL CYCLE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

An organism body cell (parent cell) have 30 chromatin (chromosome) at the start of interphase. How many chromosome is expected in the resulting daughter cell after mitosis?

A	60
B	10
C	15
D	30

Explanation:

Detailed explanation-1: -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-2: -If a cell has 30 chromosomes before mitosis, each daughter cell also has 30 chromosomes. Mitosis is the process of cell division and makes two identical daughter cells from one parent cell.

Detailed explanation-3: -Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids.

Detailed explanation-4: -Thus, a cell beginning with 30 chromosomes will end up having daughter cells with only 15 chromosomes by the end of meiosis.

Detailed explanation-5: -so an animal with a diploid number of chromosomes equal to 30 will produce four gametes. Each gamete will contain 15 chromosomes due to meiosis.

There is 1 question to complete.