Q. No.Identify the correct statements regarding G1 phase of the cell cycle:
I:
It is the post-mitotic gap phase
II:
The cell is metabolically active and grows continuously
III:
Cell replicates its DNA
1.
Only II
2.
I and II only
3.
Only I
4.
I, II and III
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What would be the DNA content and chromosome number in a cell at the end of S phase with 2C DNA content and 2N chromosome number in G1?
| 1. 4C and 4N | 2. 2C and 4N |
| 3. 4C and 2N | 4. 2C and 2N |
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Proteins are synthesized in preparation for mitosis during:
| 1. G1 phase | 2. S phase |
| 3. G2 phase | 4. M phase |
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The cells in the quiescent stage [G0] phase of the cell cycle:
1. exit from the S phase
2. continue the events of cell cycle and complete the division
3. are metabolically active
4. cannot ever proliferate
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Mitosis is also called ‘equational division’ because:
| 1. | the number of chromosomes in both daughter cells are the same |
| 2. | the sum of the number of chromosomes in two daughter cells is equal to the number of chromosomes in the parent cell |
| 3. | each progeny cell receives only one set of chromosomes from the parent cell |
| 4. | the number of chromosomes in the parent and the progeny cells is the same |
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The phase of the cell cycle during which DNA replication takes place is:
| 1. G1 phase | 2. S phase |
| 3. G2 phase | 4. M phase |
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The correct chronology of stages of karyokinesis in mitosis is:
1. Prophase – Anaphase – Metaphase – Telophase
2. Prophase – Metaphase – Anaphase – Telophase
3. Prophase – Metaphase – Telophase – Anaphase
4. Telophase – Anaphase – Metaphase – Prophase
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The two asters together with spindle fibers form the:
1. Centrosome
2. Mitotic apparatus
3. Kinetochore
4. Chiasmata
Prophase of mitosis is not characterized by:
1. condensation of chromatin
2. migration of centrosomes to opposite poles
3. formation of mitotic apparatus
4. pairing of homologous chromosomes
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