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Multiple Choice
Which of the following is true of mitosis in a diploid cell?
A
It reduces the chromosome number by half.
B
It results in four haploid cells.
C
It produces two genetically identical diploid daughter cells.
D
It involves crossing over between homologous chromosomes.
Verified step by step guidance
1
Step 1: Begin by understanding the process of mitosis. Mitosis is a type of cell division that occurs in somatic (non-reproductive) cells, where a single diploid parent cell divides to produce two genetically identical diploid daughter cells.
Step 2: Recall that mitosis does not reduce the chromosome number by half. Instead, it maintains the diploid chromosome number in the daughter cells, as the parent cell's DNA is replicated before division.
Step 3: Understand that mitosis results in two daughter cells, not four. The production of four haploid cells occurs during meiosis, which is a different type of cell division involved in gamete formation.
Step 4: Note that crossing over between homologous chromosomes is a feature of meiosis, not mitosis. Crossing over occurs during prophase I of meiosis to increase genetic diversity.
Step 5: Conclude that the correct statement about mitosis in a diploid cell is: 'It produces two genetically identical diploid daughter cells.' This is the defining characteristic of mitosis.