OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When in the cell cycle is DNA replication?
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S phase of interphase
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Go of interphase
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mitosis
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meiosis
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Explanation:
Detailed explanation-1: -During G1, the cell is metabolically active and continuously grows but does not replicate its DNA. G1 is followed by S phase (synthesis), during which DNA replication takes place.
Detailed explanation-2: -Answer and Explanation: DNA replication occurs during the subphase of interphase called S phase. “S” stands for synthesis of new molecules of nuclear DNA.
Detailed explanation-3: -S phase. In S phase, the cell synthesizes a complete copy of the DNA in its nucleus. It also duplicates a microtubule-organizing structure called the centrosome. The centrosomes help separate DNA during M phase.
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