#Question id: 40467
#Applied Microbiology
Assertion (A): The time interval between the penetration of the viral DNA and the release of new virions is known as the "Eclipse Period."
Reason (R): During the eclipse period, complete infectious virus particles are not yet detected within the host cell because they are still being assembled from separate components.
Choose the correct option:
#Question id: 40468
#Applied Microbiology
Match the Viral Cycle Phase in Column I with the key molecular event in Column II.
| Column I (Phase) | Column II (Key Event) |
| A. Attachment | 1. Interaction of tail fibers with specific host cell wall receptors |
| B. Release | 2. Action of Lysozyme/Endolysin to break the cell wall |
| C. Lysogeny | 3. Integration of viral DNA into the host genome (Prophage) |
| D. Maturation | 4. Spontaneous self-assembly of capsid heads and tails |
#Question id: 40469
#Applied Microbiology
While the amount of DNA doubles during the S phase, the number of chromosomes remains the same. In which subsequent phase does the actual separation of sister chromatids occur, effectively doubling the chromosome count temporarily?
#Question id: 40470
#Applied Microbiology
Consider the following statements regarding the G1 Phase (Gap 1):
Statement I: The G1 phase corresponds to the interval between mitosis and the initiation of DNA replication.
Statement II: During G1, the cell is metabolically active and grows continuously, but does not replicate its DNA.
Which of the above statements is/are correct?
#Question id: 40471
#Applied Microbiology
Assertion (A): If a cell contains 2C amount of DNA in the G1 phase, it will contain 4C amount of DNA in the G2 phase.
Reason (R): The G2 phase is the site of DNA replication where the genetic material is duplicated.
Choose the correct option:
#Question id: 40472
#Applied Microbiology
Match the Cell Cycle Phase in Column I with the specific event in Column II.
| Column I (Phase) | Column II (Specific Event) |
| A. S Phase | 1. Cells exit the cell cycle and enter a quiescent stage |
| B. G2 Phase | 2. Synthesis of histone proteins and DNA replication |
| C. G0 Phase | 3. Synthesis of tubulin proteins for spindle formation |
| D. M Phase | 4. Condensation of chromatin into chromosomes |