Match the following column I with column II. 

	Column I		Column II
A.	Synapsis aligns homologous chromosomes	(i)	Anaphase II
B.	Synthesis of RNA and protein	(ii)	Zygotene
C.	Action of enzyme recombinase	(iii)	G2 - phase
D.	Centromeres do not separate, but chromatids move towards opposite poles	(iv)	Anaphase I
		(v)	Pachytene

1. A-(ii), B-(i), C-(iii), D-(iv)

2. A-(ii), B-(iii), C-(v), D-(iv)

3. A-(i), B-(ii), C-(v), D-(iv)

4. A-(ii), B-(iii), C-(iv), D-(v)

During which phase(s) of the cell cycle, amount of DNA in a cell remains at 4 C level if the initial amount is denoted as 2C:

1. G₀ and G₁

2. G₁ and S

3. Only G₂

4. G₂ and M

A stage in cell division is shown in the figure. Select the answer which gives the correct identification of the stage with its characteristics:
 

In the 'S' phase of the cell cycle:

1. amount of DNA doubles in each cell.

2. amount of DNA remains the same in each cell

3. chromosome number is increased

4. amount of DNA is reduced to half in each cell.

The enzyme recombinase is required at which stage of meiosis:
1. Pachytene
2. Zygotene
3. Diplotene
4. Diakinesis

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

1. Kinetochore

2. Bivalent

3. Axoneme

4. Equatorial plate

During gamete formation, the enzyme recombinase participates during:
1. Metaphase-I
2. Anaphase-II
3. Prophase-I
4. Prophase-II

During mitosis ER and nucleolus begin to disappear at:

1. late prophase

2. early metaphase

3. late metaphase

4. early prophase

Which stages of cell division do the following figures A and B represent respectively?