Congression of chromosomes is seen in
1. | Prophase | 2. | Metaphase |
3. | Anaphase | 4. | Telophase |
The complex formed by a pair of synapsed homologous chromosomes is
1. Dyad
2. Tetrad
3. Bivalent
4. Both 2 and 3
Microtubules attach to kinetochore of sister chromatids during
1. | Anaphase-I | 2. | Prophase-II |
3. | Metaphase-II | 4. | Anaphase-II |
Metaphase I is different from mitotic metaphase as in the later case
1. | Two metaphasic plates are formed |
2. | Tetrads are arranged at the equator |
3. | Single metaphasic plate is formed |
4. | Homologous chromosomes get separated from each other |
Reduction in the number of chromosomes occurs during
1. Diplotene
2. Diakinesis
3. Metaphase I
4. Anaphase I
In which stage of mitosis, shape of chromosomes is best studied?
1. Prophase
2. Metaphase
3. Interphase
4. Telophase
The stage during which chiasmata becomes visible is
1. | Pachytene | 2. | Diplotene |
3. | Diakinesis | 4. | Zygotene |
Which phase of mitosis is essentially the reverse of prophase in terms of nuclear changes?
1. | S-phase | 2. | Anaphase |
3. | Telophase | 4. | Interphase |
Chromatin condensation and movement of duplicated centriole towards opposite pole can be observed during -
1. | Prophase | 2. | Metaphase |
3. | Anaphase | 4. | Telophase |
Following are the events occurs during meiosis :
(A) | Appearance of chiasmata |
(B) | Synapsis |
(C) | Assembly of meiotic spindle |
(D) | Use of recombinase enzyme |
1. ABCD
2. BDAC
3. DCBA
4. BCAD