Dissolution of the synaptonemal complex occurs during :
1. | Zygote | 2. | Diplotene |
3. | Leptotene | 4. | Pachytene |
Match the following with respect to meiosis:
Column I | Column II | ||
(a) | Zygotene | (i) | Terminalization |
(b) | Pachytene | (ii) | Chiasmata |
(c) | Diplotene | (iii) | Crossing over |
(d) | Diakinesis | (iv) | Synapsis |
Select the correct option from the following:
Options: | (a) | (b) | (c) | (d) |
1. | iv | iii | ii | i |
2. | i | ii | iv | iii |
3. | ii | iv | iii | i |
4. | iii | iv | i | ii |
Does Tubulin protein synthesis take place in which of the given stages of interphase?
1. | G1 | 2. | G0 |
3. | S | 4. | G2 |
Reduction in the number of chromosomes occurs during
1. Diplotene
2. Diakinesis
3. Metaphase I
4. Anaphase I
Identify the correct statement with regard to phase (Gap 1) of interphase:
1. | The reorganisation of all cell components takes place. |
2. | The cell is metabolically active and grows but does not replicate its DNA |
3. | Nuclear division takes place |
4. | DNA synthesis or replication takes place. |
Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage . This process occurs at the end of:
1.
2. S phase
3.
4. M phase
A diploid cell has 40 units of DNA at G1 of interphase.How many units of DNA are present
in the cell after meiosis I?
1. | 10 | 2. | 20 |
3. | 40 | 4. | 80 |
The diploid number of chromosomes in chimpanzees is 48. How many DNA molecules are in the genome of a chimpanzee cell before it begins meiosis?
1. | 48 | 2. | 96 |
3. | 24 | 4. | 12 |
Identify the symbols A, B, and C in the figure given below
A B C
1. Prophase Cytokinesis
2. Prophase Metaphase Telophase
3. S
4. Cytokinesis Prophase
1. 1
2. 2
3. 3
4. 4
The figures below shows 3 phases of mitosis select the option given correct identification together with the correct event ?
1. | C- Telophase-Nuclear envelope assembles around the chromosome clusters |
2. | B- Anaphase-Segregation of homologous chromosomes. |
3. | A- Prophase-Chromosomes get fully condensed. |
4. | C- Metaphase-Condensation of chromatin to form chromosome |