AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Beaver muscle cells have 48 chromosomes. How many chromosomes would be found in a beaver egg cell?
A
96
B
48
C
24
D
12
Explanation: 

Detailed explanation-1: -Skeletal muscle cells are formed from the fusion of multiple cells. Therefore, the end result is a cell with multiple nuclei. Other muscle cells like smooth muscle cells (e.g. muscle cells making our intestinal walls) and cardiac muscle cells (heart muscle cells) have 23 chromosomes.

Detailed explanation-2: -Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

Detailed explanation-3: -Each daughter cell contains half of the chromosomes in number as that of the parent cell. Thus, it can be concluded that daughter cells produced from the parent cell will have 24 chromosomes.

Detailed explanation-4: -The gametes of human cells are haploid, from the Greek haplos, meaning “single.” This term implies that each gamete contains half of the 46 chromosomes-23 chromosomes in humans.

There is 1 question to complete.