Centromere is required for
1. Crossing over
2. Transcription
3. Cytoplasmic cleavage
4. Movement of chromosomes towards poles

Spindle fibres attach on to:                                                                                                                                
1. Kinetosome of the chromosome
2. Telomere of the chromosome
3. Kinetochore of the chromosome
4. Centromere of the chromosome

After meiosis I, the resultant daughter cells have

Crossing over takes place between which chromatids and in which stage of the cell cycle?

Which of the following is the correct sequence of events of interphase:-

1. $\mathrm{a}\to \mathrm{b}\to \mathrm{c}\to \mathrm{d}$

2. $\mathrm{a}\to \mathrm{d}\to \mathrm{b}\to \mathrm{c}$

3. $\mathrm{a}\to \mathrm{b}\to \mathrm{d}\to \mathrm{c}$

4. $\mathrm{a}\to \mathrm{c}\to \mathrm{d}\to \mathrm{b}$ 

Which of the following is characteristic of prophase I of meiosis I:-

The correct sequence of phases in cell cycle is:

1. ${\mathrm{G}}_1\to \mathrm{S}\to {\mathrm{G}}_2\to \mathrm{M}$

2. $\mathrm{M}\to {\mathrm{G}}_1\to {\mathrm{G}}_2\to \mathrm{S}$

3. ${\mathrm{G}}_1\to {\mathrm{G}}_2\to \mathrm{S}\to \mathrm{M}$

4. $\mathrm{S}\to {\mathrm{G}}_1\to {\mathrm{G}}_2\to \mathrm{M}$

Cells in ${\mathrm{G}}_0$ phase:
1. terminate the cell cycle
2. exit the cell cycle
3. enter the cell cycle
4. suspend the cell cycle