CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The cell cycle has two major phases: interphase and the mitotic phase (Figure 6.3). During interphase, the cell grows and DNA is replicated.
Detailed explanation-2: -At the molecular level, however, interphase is the time during which both cell growth and DNA replication occur in an orderly manner in preparation for cell division.
Detailed explanation-3: -The correct answer is (D) RNA primase makes the RNA primer, while DNA Pol epsilon extends that primer with DNA. DNA polymerase epsilon is the enzyme that synthesizes new strands of DNA during replication.
Detailed explanation-4: -There is some kind of growth happening inside the cell during the interphase. Hence the statement “There is no cell growth” is an incorrect statement.
Detailed explanation-5: -Continuing to grow and carry out normal functions, eukaryotic cells replicate their chromosomes during the S phase of Interphase. S stands for synthesis (of a new set of chromosomes). These matching sets of chromosomes are known as sister chromatids.