In G${}_2$ phase of cell cycle

1.	RNA synthesis stops.
2.	DNA replicates.
3.	Deoxyribonucleotide synthesis begins.
4.	Tubulin protein synthesis takes place.

Alignment of bivalent chromosomes on the equatorial
plate and splitting of centromeres occur respectively
in which of the following stages of cell division?

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

During mitosis, endoplasmic reticulum and nucleolus begin to disappear at: 

Which is the characteristic feature of metaphase?

Which stage of meiosis - I is characterized by the
appearance of recombination nodules?
1. Diplotene
2. Zygotene
3. Diakinesis
4. Pachytene

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:-

Which of the following is not related to formation of
bivalent?

It begins with the simultaneous splitting of the
centromere of each chromosome, is true for which stage
of Cell division.
1. Anaphase-I 
2. Anaphase-II
3. Anaphase 
4. More than one