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Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.
Reason : Prophase is marked by the initiation of clusters of chromosomes.
Reason : Prophase is marked by the initiation of clusters of chromosomes.
- a)If both Assertion and Reason are true and Reason is the 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 are false
Correct answer is option 'D'. Can you explain this answer?
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Assertion: Prophase is the first stage of mitosis which follows S and ...
Prophase which is the first stage of mitosis follows the S and G2 phases of interphase. In the S and G2 phases, the new DNA molecules formed are not distinct but interwined. Prophase is marked by the initiation of condensation of chromosomal material. The chromosomal material becomes untangled during the process of chromatin condensation.
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Assertion: Prophase is the first stage of mitosis which follows S and ...
Understanding Mitosis and Interphase
In cell biology, understanding the phases of the cell cycle is crucial, particularly the stages of mitosis and interphase.
Assertion Analysis
- Prophase as the First Stage: Prophase is indeed the first stage of mitosis, but it does not directly follow the S (Synthesis) and G1 (Gap 1) phases. Instead, prophase follows the G2 phase of interphase, which comes after S phase where DNA replication occurs.
Reason Analysis
- Clusters of Chromosomes: During prophase, chromatin condenses to form visible chromosomes. However, the term "initiation of clusters of chromosomes" may be misleading. The chromosomes are not just clustering; they are condensing and becoming visible as distinct entities. This description does not accurately capture the complexity of prophase.
Conclusion
- Evaluation of Both Statements: Given the inaccuracies in both the assertion and the reason, we conclude that:
- The assertion that prophase follows S and G1 phases is false.
- The reason regarding clusters of chromosomes is misleading and therefore also false.
Thus, the correct answer is option 'D', as both the assertion and reason are false.
Key Takeaways:
- Prophase follows the G2 phase, not S and G1.
- The description of chromosome clustering in prophase is inaccurate.
This detailed understanding of mitosis helps clarify the confusion surrounding the cell cycle phases.
In cell biology, understanding the phases of the cell cycle is crucial, particularly the stages of mitosis and interphase.
Assertion Analysis
- Prophase as the First Stage: Prophase is indeed the first stage of mitosis, but it does not directly follow the S (Synthesis) and G1 (Gap 1) phases. Instead, prophase follows the G2 phase of interphase, which comes after S phase where DNA replication occurs.
Reason Analysis
- Clusters of Chromosomes: During prophase, chromatin condenses to form visible chromosomes. However, the term "initiation of clusters of chromosomes" may be misleading. The chromosomes are not just clustering; they are condensing and becoming visible as distinct entities. This description does not accurately capture the complexity of prophase.
Conclusion
- Evaluation of Both Statements: Given the inaccuracies in both the assertion and the reason, we conclude that:
- The assertion that prophase follows S and G1 phases is false.
- The reason regarding clusters of chromosomes is misleading and therefore also false.
Thus, the correct answer is option 'D', as both the assertion and reason are false.
Key Takeaways:
- Prophase follows the G2 phase, not S and G1.
- The description of chromosome clustering in prophase is inaccurate.
This detailed understanding of mitosis helps clarify the confusion surrounding the cell cycle phases.
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Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer?
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Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer?.
Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: Prophase is the first stage of mitosis which follows S and G1 phases of interphase.Reason : Prophase is marked by the initiation of clusters of chromosomes.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)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 are falseCorrect answer is option 'D'. Can you explain this answer?.
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