Q. No.Proteins are synthesized in preparation for mitosis during:
1.
G1 phase
2.
S phase
3.
G2 phase
4.
M phase
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 |
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 |
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 |
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
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
Cells at the end of prophase, when viewed under the microscope, show:
| 1. | Nuclear envelope | 2. | Nucleolus |
| 3. | Mitochondria | 4. | Endoplasmic reticulum |
Identify the stage of mitosis shown in the given diagram:
 |
|
The start of the second phase of mitosis, metaphase, is marked by:
1. complete disintegration of the nuclear envelope
2. alignment of chromosomes at the equatorial plate
3. de-condensation of chromatin
4. reappearance of the nucleolus
© 2024 GoodEd Technologies Pvt. Ltd.