Biology Homework Help: Questions and Answers: After mitosis has successfully occurred each daughter cell has __ of chromosomes as the parent.
Answer
Mitosis is a process of cell division that results in the formation of two daughter cells from a single parent cell. During mitosis, the nucleus of the parent cell divides, and the chromosomes are equally distributed between the two daughter cells. Here’s a step-by-step explanation:
Chromosome Replication
- Before mitosis begins, the DNA in the parent cell is replicated during the S phase of the cell cycle. This means that each chromosome is copied, but the number of chromosomes does not change. Instead, each chromosome consists of two sister chromatids.
Chromosome Number
- Humans, for example, have 46 chromosomes (23 pairs) in a typical body cell. After the DNA replication, each chromosome is made up of two sister chromatids, but the total chromosome count remains 46.
Division During Mitosis
- During mitosis, these chromatids are pulled apart by spindle fibers, so each daughter cell receives one chromatid from each chromosome. The key point is that each daughter cell ends up with the same number of chromosomes as the parent cell.
Final Answer
After mitosis is complete, the two daughter cells have the same number of chromosomes as the parent cell, because mitosis ensures equal division of genetic material.
Correct Answer: b) the same number
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