Q. No.Match the following Column-I with Column-II.
Column-I
Column-II
A.
Synapsis aligns homologous chromosomes
(i)
Anaphase II
B.
Synthesis of RNA and protein
(ii)
Zygotene
C.
Action of enzyme recombinase
(iii)
G2 - phase
D.
Centromeres do not separate, but chromatids move towards opposite poles
(iv)
Anaphase I
(v)
Pachytene
1. A-(ii), B-(i), C-(iii), D-(iv)
2. A-(ii), B-(iii), C-(v), D-(iv)
3. A-(i), B-(ii), C-(v), D-(iv)
4. A-(ii), B-(iii), C-(iv), D-(v)
A somatic cell that has just completed the S-phase of its cell cycle, as compared to a gamete of the same species has:
| 1. | twice the number of chromosomes and twice the amount of DNA |
| 2. | the same number of chromosomes but twice the amount of DNA |
| 3. | twice the number of chromosomes and four times the amount of DNA |
| 4. | four times the number of chromosomes and twice the amount of DNA |
During which phase(s) of the cell cycle, amount of DNA in a cell remains at 4 C level if the initial amount is denoted as 2C:
| 1. | G0 and G1 | 2. | G1 and S |
| 3. | Only G2 | 4. | G2 and M |
A stage in cell division is shown in the figure. Select the answer which gives the correct identification of the stage with its characteristics:
|
1. |
Late anaphase |
Chromosomes move away from the equatorial plate, Golgi complex not present |
|
2. |
Cytokinesis |
Cell plate formed, mitochondria distributed between two daughter cells |
|
3. |
Telophase |
Endoplasmic reticulum and nucleolus not reformed yet |
|
4. |
Telophase |
Nuclear envelop reforms, Golgi complex reforms |
In the 'S' phase of the cell cycle:
| 1. | amount of DNA doubles in each cell. |
| 2. | amount of DNA remains the same in each cell |
| 3. | chromosome number is increased |
| 4. | amount of DNA is reduced to half in each cell. |
The enzyme recombinase is required at which stage of meiosis:
| 1. | Pachytene | 2. | Zygotene |
| 3. | Diplotene | 4. | Diakinesis |
The complex formed by a pair of synapsed homologous chromosomes is called:
1. Kinetochore
2. Bivalent
3. Axoneme
4. Equatorial plate
During gamete formation, the enzyme recombinase participates during:
1. Metaphase-I
2. Anaphase-II
3. Prophase-I
4. Prophase-II
Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? 
1. Prophase-I during meiosis
2. Prophase-II during meiosis
3. Prophase of mitosis
4. Both prophase and metaphase of mitosis
| 1. | Chromatids start moving towards opposite poles in telophase. |
| 2. | Golgi complex and endoplasmic reticulum are still visible at the end of prophase. |
| 3. | Chromosomes move to the spindle equator and get aligned along the equatorial plate in metaphase. |
| 4. | Chromatids separate but remain in the center of the cell in anaphase. |
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