ANIMAL REPRODUCTION AND DEVELOPMENT
SEXUAL REPRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
1 cell with 23 chromosomes, 2 cells with 46 chromosomes
|
|
|
1 cell with 46 chromosomes, 2 cells with 46 chromosomes
|
|
|
1 cell with 23 chromosomes, 4 cells with 46 chromosomes
|
|
|
1 cell with 46 chromosomes, 4 cells with 23 chromosomes
|
Detailed explanation-1: -When the cell divides, the copies are pulled apart, and each new cell gets one identical copy of each chromosome. 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-2: -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-3: -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.
Detailed explanation-4: -Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.