When a cell stops growing, say due to shortage of nutrients, this will occur in which phase of the cell cycle?

1. ${\mathrm{G}}_0$

2. ${\mathrm{G}}_1$

3. S

4. ${\mathrm{G}}_2$

The following cell undergoing mitosis, is at:
   

Which of the following options gives the correct sequences of events during mitosis?

During cell growth, DNA synthesis takes place in

1. S-phase                       
2. ${\mathrm{G}}_1$-phase
3. ${\mathrm{G}}_2$-phase                     
4. M-phase 

Which of the following is not a characteristic feature during mitosis in somatic cells
1. Disappearance of nucleolus

2. Chromosome movement

3. Synapsis

4. Spindle fibres

Spindle fibres attach on to 

In meiosis crossing over is initiated at 

1. leptotene

2. Zygotene

3. diplotene

4. pachytene

Arrange the following events of meiosis in correct sequences

1. II, I, IV, III
2. II, I, III, IV
3. I, II, III, IV
4. II, III, IV, I

During which phase(s) of cell cycle, the amount of DNA in a cell remain at 4C level if the

initial amount is denoted as 2C?

1. G₀ and G₁

2. G₁ and S

3. Only G₂

4. G₂ and M

The complex formed by a pair of synapsed homologous chromosomes is called 

1. equatorial plate

2. Kinetochore

3. bivalent

4. axoneme