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Which of the following best describes the S phase of the cell cycle?
- a)Cell growth and preparation for DNA replication
- b)Division of the cell's cytoplasm
- c)DNA replication and chromosome duplication
- d)Separation of sister chromatids
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following best describes the S phase of the cell cycle?a)...
Understanding the S Phase of the Cell Cycle
The S phase, or synthesis phase, is a crucial part of the cell cycle where significant cellular activities occur.
What Happens During the S Phase?
- DNA Replication:
- The primary function of the S phase is the replication of DNA.
- Each chromosome is duplicated, resulting in two identical sister chromatids for each original chromosome.
- Chromosome Duplication:
- Alongside the DNA, the entire genome is copied to ensure that each daughter cell receives an exact copy of the genetic material.
- This process is tightly regulated and involves various enzymes, primarily DNA polymerases, which synthesize new strands of DNA.
Importance of the S Phase
- Preparation for Cell Division:
- The successful completion of the S phase is vital for the subsequent stages of the cell cycle, particularly mitosis, where the sister chromatids will be separated.
- Any errors in DNA replication can lead to mutations, which may result in cancer or other genetic disorders.
- Cell Cycle Checkpoints:
- The S phase is monitored by checkpoints that ensure DNA is accurately replicated and that the cell is ready to proceed to the next phase (G2 phase).
- If errors are detected, the cell cycle can be halted to allow for repairs.
Conclusion
In summary, the S phase is characterized by DNA replication and chromosome duplication, making option 'C' the correct choice. This phase is essential for genetic fidelity and is a critical step in preparing the cell for division.
The S phase, or synthesis phase, is a crucial part of the cell cycle where significant cellular activities occur.
What Happens During the S Phase?
- DNA Replication:
- The primary function of the S phase is the replication of DNA.
- Each chromosome is duplicated, resulting in two identical sister chromatids for each original chromosome.
- Chromosome Duplication:
- Alongside the DNA, the entire genome is copied to ensure that each daughter cell receives an exact copy of the genetic material.
- This process is tightly regulated and involves various enzymes, primarily DNA polymerases, which synthesize new strands of DNA.
Importance of the S Phase
- Preparation for Cell Division:
- The successful completion of the S phase is vital for the subsequent stages of the cell cycle, particularly mitosis, where the sister chromatids will be separated.
- Any errors in DNA replication can lead to mutations, which may result in cancer or other genetic disorders.
- Cell Cycle Checkpoints:
- The S phase is monitored by checkpoints that ensure DNA is accurately replicated and that the cell is ready to proceed to the next phase (G2 phase).
- If errors are detected, the cell cycle can be halted to allow for repairs.
Conclusion
In summary, the S phase is characterized by DNA replication and chromosome duplication, making option 'C' the correct choice. This phase is essential for genetic fidelity and is a critical step in preparing the cell for division.
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Community Answer
Which of the following best describes the S phase of the cell cycle?a)...
The S phase (Synthesis phase) of the cell cycle is characterized by DNA replication and chromosome duplication. During this phase, each chromosome is replicated to produce two sister chromatids, effectively doubling the genetic material in preparation for cell division. This ensures that each daughter cell will receive an identical set of chromosomes.
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Which of the following best describes the S phase of the cell cycle?a)Cell growth and preparation for DNA replicationb)Division of the cells cytoplasmc)DNA replication and chromosome duplicationd)Separation of sister chromatidsCorrect answer is option 'C'. Can you explain this answer?
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Which of the following best describes the S phase of the cell cycle?a)Cell growth and preparation for DNA replicationb)Division of the cells cytoplasmc)DNA replication and chromosome duplicationd)Separation of sister chromatidsCorrect answer is option 'C'. 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 Which of the following best describes the S phase of the cell cycle?a)Cell growth and preparation for DNA replicationb)Division of the cells cytoplasmc)DNA replication and chromosome duplicationd)Separation of sister chromatidsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following best describes the S phase of the cell cycle?a)Cell growth and preparation for DNA replicationb)Division of the cells cytoplasmc)DNA replication and chromosome duplicationd)Separation of sister chromatidsCorrect answer is option 'C'. Can you explain this answer?.
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