1. | M | 2. | G2 |
3. | G1 | 4. | G0 |
1. | (D), (B), (A), (E), (C) | 2. | (A), (B), (D), (E), (C) |
3. | (D), (A), (B), (E), (C) | 4. | (A), (D), (B), (C), (E) |
Assertion (A): | M phase is also known as equational division. |
Reason (R): | In mitosis, number of chromosomes in the parent and the progency cells is the same. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | The chromosomes are spread through the cytoplasm of the cell in the metaphase. |
Reason (R): | Complete disintegration of the nuclear envelope takes place in the metaphase. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | It is essential for a cell to divide, to restore the nucleo-cytoplasmic ratio. |
Reason (R): | Cell growth disturbs the nucleo-cytoplasmic ratio. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Meiosis does not occur in haploids cells. |
Reason (R): | Haploid cells do not form gametes. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | During anaphase-1 of meiosis, non-homologous chromosomes separate. |
Reason (R): | There is splitting of centromere during anaphase-1. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | In anaphase stage chromatids move to opposite poles. |
Reason (R): | Anaphase is the shortest phase. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Detailed study of chromosome morphology is done at metaphase. |
Reason (R): | At metaphase, chromosomes arrange at equatorial plate. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion (A): | Meiosis introduces new combination of traits in the progency. |
Reason (R): | Meiosis involves crossing over. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |