AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cat has a total of 38 chromosomes in its body cells. How many in its gametes?
A
38
B
19
C
76
D
10
Explanation: 

Detailed explanation-1: -2n=38. So n=19. Therefore, 19 chromosomes are inherited from each parent. Gametes (haploid) have 19 chromosomes.

Detailed explanation-2: -Answer and Explanation: The chromosome number during mitosis always remains the same. If the cat cell had 38 chromosomes, the resulting daughter cells will also have 38 chromosomes.

Detailed explanation-3: -Domestic cats have 38 chromosomes, including 18 autosomal pairs and the sex chromosomes, X and Y.

Detailed explanation-4: -In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. The number of chromosomes in a single set is represented as n, which is also called the haploid number.

Detailed explanation-5: -In an organism that has 36 chromosomes, at the end of meiosis I, each gamete contains 18 chromosomes, or 36 chromatids.

There is 1 question to complete.