AP BIOLOGY

CELL DIVISION

MEIOSIS

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

An organism has 20 chromosomes in its skin cell. How many chromosomes are in its gamete cells?

A	20
B	10
C	40
D	15

Explanation:

Detailed explanation-1: -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-2: -Answer and Explanation: If a diploid cell from the hypothetical organism has 20 chromosomes, the haploid gamete would have 10.

Detailed explanation-3: -Complete answer: When an organism with 20 chromosomes undergoes meiotic division it produces four gametes each having half the number of chromosomes(10) the parent cell has.

Detailed explanation-4: -The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

There is 1 question to complete.