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Identify the correct statement with regard to G1 phase (Gap I) of interphase [2020]
- a)Cell is metabolically active, grows but does not replicate its DNA
- b)Nuclear division takes place
- c)DNA synthesis or replication takes place
- d)Reorganisation of all cell components takes place
Correct answer is option 'A'. Can you explain this answer?
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Identify the correct statement with regard to G1phase (Gap I) of inter...
G1 Phase is metabolically active stage of cell cycle. Different type of amino acid RNA, Protein synthesis take place in G1 phase but DNA replication does not take place, (Note :- DNA replication occur in S-Phase)
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Identify the correct statement with regard to G1phase (Gap I) of inter...
**G1 Phase (Gap 1) of Interphase:**
The cell cycle consists of several phases, one of which is the interphase. Interphase is the longest phase of the cell cycle and is divided into three sub-phases: G1 phase (Gap 1), S phase (Synthesis), and G2 phase (Gap 2). Each of these sub-phases has specific functions and activities.
**1. G1 Phase (Gap 1):**
During the G1 phase, the cell is metabolically active and performs various functions to prepare for DNA replication and cell division. Here are the characteristics of the G1 phase:
- **Cell Growth:** The cell undergoes significant growth in size and increases its cytoplasmic volume. It synthesizes new proteins, RNA, and organelles to support its growth.
- **Metabolic Activity:** The cell carries out various metabolic processes, such as energy production and nutrient uptake, to meet the increased demands of cell growth.
- **Checkpoint Control:** The G1 phase also includes a checkpoint control mechanism that ensures the cell's readiness for DNA replication and division. If any damage or abnormalities are detected, the cell may enter a resting phase called G0 or undergo cell death.
- **DNA Replication:** Contrary to the given options, DNA synthesis or replication does not occur during the G1 phase. It takes place in the subsequent S phase of interphase.
- **Preparation for DNA Replication:** However, during the G1 phase, the cell prepares for DNA replication by producing the necessary enzymes and proteins required for DNA synthesis. It also checks for any DNA damage and repairs it if possible.
Therefore, the correct statement with regard to the G1 phase of interphase is option 'A': The cell is metabolically active, grows, but does not replicate its DNA.
The cell cycle consists of several phases, one of which is the interphase. Interphase is the longest phase of the cell cycle and is divided into three sub-phases: G1 phase (Gap 1), S phase (Synthesis), and G2 phase (Gap 2). Each of these sub-phases has specific functions and activities.
**1. G1 Phase (Gap 1):**
During the G1 phase, the cell is metabolically active and performs various functions to prepare for DNA replication and cell division. Here are the characteristics of the G1 phase:
- **Cell Growth:** The cell undergoes significant growth in size and increases its cytoplasmic volume. It synthesizes new proteins, RNA, and organelles to support its growth.
- **Metabolic Activity:** The cell carries out various metabolic processes, such as energy production and nutrient uptake, to meet the increased demands of cell growth.
- **Checkpoint Control:** The G1 phase also includes a checkpoint control mechanism that ensures the cell's readiness for DNA replication and division. If any damage or abnormalities are detected, the cell may enter a resting phase called G0 or undergo cell death.
- **DNA Replication:** Contrary to the given options, DNA synthesis or replication does not occur during the G1 phase. It takes place in the subsequent S phase of interphase.
- **Preparation for DNA Replication:** However, during the G1 phase, the cell prepares for DNA replication by producing the necessary enzymes and proteins required for DNA synthesis. It also checks for any DNA damage and repairs it if possible.
Therefore, the correct statement with regard to the G1 phase of interphase is option 'A': The cell is metabolically active, grows, but does not replicate its DNA.
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Identify the correct statement with regard to G1phase (Gap I) of interphase [2020]a)Cell is metabolically active, grows but does not replicate its DNAb)Nuclear division takes placec)DNA synthesis or replication takes placed)Reorganisation of all cell components takes placeCorrect answer is option 'A'. Can you explain this answer?
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Identify the correct statement with regard to G1phase (Gap I) of interphase [2020]a)Cell is metabolically active, grows but does not replicate its DNAb)Nuclear division takes placec)DNA synthesis or replication takes placed)Reorganisation of all cell components takes placeCorrect answer is option 'A'. 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 Identify the correct statement with regard to G1phase (Gap I) of interphase [2020]a)Cell is metabolically active, grows but does not replicate its DNAb)Nuclear division takes placec)DNA synthesis or replication takes placed)Reorganisation of all cell components takes placeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Identify the correct statement with regard to G1phase (Gap I) of interphase [2020]a)Cell is metabolically active, grows but does not replicate its DNAb)Nuclear division takes placec)DNA synthesis or replication takes placed)Reorganisation of all cell components takes placeCorrect answer is option 'A'. Can you explain this answer?.
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