AP BIOLOGY

CELL DIVISION

THE 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: -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-3: -Answer and Explanation: The daughter cells would all have 8 chromosomes just like the original parent cell.

Detailed explanation-4: -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.

Detailed explanation-5: -Eight chromosomes are found in the somatic cells in fruit flies, suggesting they have 2 pairs of four chromosomes. Mitosis ensures that each cell generated executes the correct functions since they are similar to the original cell. The mechanism by which sex cells are formed is meiosis.

There is 1 question to complete.