AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a human cell has 46 chromosomes, how many chromosomes are found in each cell at the end of mitosis?
A
23
B
92
C
46
D
varies
Explanation: 

Detailed explanation-1: -Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.

Detailed explanation-2: -This type of cell division is called mitosis, and it produces cells with a total of 46 chromosomes. Beginning soon after fertilization (see below), all of the cells in your body were made this way.

Detailed explanation-3: -Answer and Explanation: If humans have 46 chromosomes in each of their body cells, you would expect to find 46 chromosomes in a daughter cell from mitosis. In the process of mitosis, one parent cell divides to form two identical daughter cells. The daughter cells are also genetically identical to the parent cell.

Detailed explanation-4: -In mitosis, a parent cell will divide and form daughter cells having the same number of chromosomes. So, a human vegetative cell having 46 chromosomes will undergo mitosis and form daughter cells that will have 46 chromosomes only as no reduction or addition of chromosomes takes place.

Detailed explanation-5: -At this point, nuclear division begins, and the parent cell is divided in half, forming 2 daughter cells. Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids.

There is 1 question to complete.