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Assertion: G(1) -phase is also called an...

Assertion: `G_(1)` -phase is also called anaphase , as during this phase the cell stores ATP for cell division.
Reason: Cell produce structural and functional proteins. Cell's metabolic rate is high and is controlled by the enzymes,

A

If both Assertion and Reason are true and Reason is correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If both Assertion and Reason and false.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we will break down the concepts involved step by step. ### Step 1: Understanding the G1 Phase The G1 phase (Gap 1 phase) is the first stage of interphase in the cell cycle. During this phase, the cell grows and synthesizes proteins and RNA necessary for DNA replication. It is not associated with ATP storage specifically for cell division. **Hint:** Remember that the G1 phase is primarily about cell growth and preparation for DNA synthesis. ### Step 2: Clarifying the Anaphase Anaphase is a specific stage of mitosis (not interphase) where the chromosomes are separated and pulled towards opposite poles of the cell. It occurs after metaphase and before telophase. Therefore, it is incorrect to refer to the G1 phase as anaphase. **Hint:** Anaphase is a part of mitosis, while G1 is part of interphase. ### Step 3: Evaluating the Assertion The assertion states that the G1 phase is also called anaphase and that the cell stores ATP during this phase. This is incorrect because: - G1 is not called anaphase. - The primary function of G1 is not ATP storage but rather preparation for DNA synthesis. **Hint:** Focus on the definitions of cell cycle phases to clarify their functions. ### Step 4: Evaluating the Reason The reason states that the cell produces structural and functional proteins, and its metabolic rate is high and controlled by enzymes. This statement is true; during the G1 phase, the cell does produce proteins and has a high metabolic rate. **Hint:** Identify the metabolic activities that occur during the G1 phase to understand the reason better. ### Step 5: Conclusion Since the assertion is false and the reason is true, but the reason does not support the assertion, we conclude that both the assertion and reason are incorrect in the context provided. **Final Answer:** The correct option is that both the assertion and the reason are false.
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