NEET BIOLOGY

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CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have-
A
16 chromosomes.
B
46 chromosomes.
C
8 chromosomes.
D
4 chromosomes.
Explanation: 

Detailed explanation-1: -Each daughter cell will have 8 chromosomes. That is correct. By the end of mitosis, there are two daughter cells. Each daughter cell will have the same amount of genetic material as the parent – 8 chromosomes.

Detailed explanation-2: -This is because when a cell undergoes mitosis, the amount of chromosomes in that cell will double (in this scenario into 16 chromosomes), but will later be divided into the two daughter cells (8 chromosomes each).

Detailed explanation-3: -In a somatic cell of a fruit fly with eight chromosomes, the number of chromosomes in each daughter cell after mitosis is eight.

Detailed explanation-4: -Answer and Explanation: The daughter cells would all have 8 chromosomes just like the original parent cell.

Detailed explanation-5: -Diploid cells always have an even number of chromosomes because the chromosomes are found in pairs (2n). Haploid cells only contain half the number of chromosomes (n). So you just divide 8 by 2, which equals 4.

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