EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In which stage of the cell cycle does the DNA replicate?
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G1
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S
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G2
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Mitosis
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Explanation:
Detailed explanation-1: -M phase (mitosis) is usually followed by cytokinesis. S phase is the period during which DNA replication occurs.
Detailed explanation-2: -DNA replication occurs in the nucleus in eukaryotes, whereas in cytoplasm in prokaryotes.
Detailed explanation-3: -Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase. Before a cell can enter the active phases of mitosis, however, it must go through a period known as interphase, during which it grows and produces the various proteins necessary for division.
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