UPSC Exam > UPSC Videos > Zoology Optional Notes for UPSC > Phases of Interphase
Phases of Interphase Video Lecture | Zoology Optional Notes for UPSC
FAQs on Phases of Interphase Video Lecture - Zoology Optional Notes for UPSC
| 1. What are the different phases of interphase? |  |
Ans. The different phases of interphase are G1 phase, S phase, and G2 phase.
| 2. How does DNA replicate during the S phase of interphase? | |
Ans. During the S phase of interphase, DNA replicates through a semi-conservative process where each strand of the original DNA molecule serves as a template for the synthesis of a new complementary strand.
| 3. What is the significance of the G1 phase in interphase? | |
Ans. The G1 phase is significant as it is a period of cell growth where the cell increases in size and synthesizes proteins necessary for DNA replication during the subsequent S phase.
| 4. How does the cell prepare for cell division during the G2 phase of interphase? | |
Ans. During the G2 phase, the cell continues to grow and prepares for cell division by synthesizing proteins necessary for mitosis and ensuring that all DNA has been replicated correctly during the S phase.
| 5. What happens if a cell skips the G1 phase of interphase? | |
Ans. If a cell skips the G1 phase of interphase, it may not properly grow and synthesize the necessary proteins for DNA replication, leading to potential errors during cell division.
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