INTRODUCTION TO MICROSCOPY CELL BIOLOGY
DIFFERENTIATED CELL
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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 DNA replication occur?
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telophase
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G1 phase of interpahse
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S phase of interphase
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anaphase
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Explanation:
Detailed explanation-1: -S phase is the period during which DNA replication occurs.
Detailed explanation-2: -G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.
Detailed explanation-3: -The S phase, occurring between the G1 and G2 phases of the cell cycle, is when DNA replication and much of the DNA repair activity occurs in cells. DNA replication is thought to proceed as large factories, consisting of large clusters of proteins, at the DNA replication fork.
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