CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the same number
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Identical to each other
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Identical to parents
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All of these are true
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Detailed explanation-1: -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.
Detailed explanation-2: -Answer and Explanation: After cell division each daughter has identical DNA to the parent cell. This is because of the semi conservative nature of DNA replication. Within each daughter cell a single strand of every DNA molecule or chromosome will be derived from the parent cell.
Detailed explanation-3: -Then, while the homologous chromosomes are tightly paired, the members of each pair trade adjacent bits of DNA in a process called crossing over, also known as recombination (Figure 1). This trading of genetic material creates unique chromosomes that contain new combinations of alleles.
Detailed explanation-4: -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.