THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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replication of DNA
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condensing of the chromosomes
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spindle formation
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disappearance of the nuclear envelope
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Detailed explanation-1: -Answer: Option D Solution: Replication of DNA does not occur in mitosis. Replication of DNA occurs during S phase, an entirely different phase of cell division.
Detailed explanation-2: -Correct answer: Explanation: Crossing over is the only answer choice that does not occur during mitosis. Crossing over occurs during prophase I of meiosis and involves swapping of genetic information between homologous chromosomes.
Detailed explanation-3: -Answer and Explanation: It is known that in DNA replication, polymerization does not occur in the 3’ to 5’ direction.
Detailed explanation-4: -This DNA synthesis occurs during the Synthesis phase of the Interphase. S phase of the Interphase is referred to as the synthesis phase. In this phase, DNA replication takes place for the duplication of entire genetic material. During mitosis, DNA replication occurs in the S-phase of the Interphase.