How do the daughter cells at the end of mitosis and cytokinesis compare with the

Question

How do the daughter cells at the end of mitosis and cytokinesis compare with their parent cell when it was in G1 of the cell cycle?
The daughter cells have half the amount of cytoplasm and half the amount of DNA.
The daughter cells have half the number of chromosomes and half the amount of DNA.
The daughter cells have the same number of chromosomes and the same amount of DNA.
The daughter cells have the same number of chromosomes and half the amount of DNA.
The daughter cells have the same number of chromosomes and twice the amount of DNA.

Explanation / Answer

The correct answer is option E. The daughter cells have the same number of chromosomes and the same amount of DNA. Explanation: This is because during mitosis the number of chromosomes (and hence the DNA) in parent and daughter cell remains same. Remember mitosis is the cell division during growth (also during asexual mode of reproduction), thus for example a diploid parent cell produces diploid daughter cells. During G1 is the growth phase during which mostly protein synthesis takes place (apart from other vital cell activities except DNA replication). During G1 the chromosomes remains unreplicated and hence have same amount of DNA as it was initially present. Thus amount of DNA and chromosome is same in daughter cell as well as parent cell in G1 phase of cell cycle.

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