In meiosis crossing over is initiated at?

1. leptotene
2. zygotene
3. diplotene
4. pachytene

Match the following column I with column II. 

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)

Consider the following four statements (I- IV) related to cell cycle, and select the correct option stating them as true (T) and false (F).

Options:
         I    II    III    IV

1.      T    F     F      F

2.      F    T     T     T

3.      F    F     T     T

4.      T    F     F     T

The microtubules from the opposite poles of the spindle attach to the pair of homologous chromosomes in

1. Metaphase - I 

2. Prophase - I

3. Metaphase 

4. Metaphase - II

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

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

“The synaptonemal complex is formed during _A_
stage and dissolves during _B_ stage”.
Complete the above statement by choosing the correct
option for A and B
         A               B
1. Diplotene    Diakinesis
2. Leptotene   Zygotene
3. Zygotene    Diplotene
4. Pachytene  Diplotene

Which one of the following features differentiates G₂
phase from G₁ phase?
1. Synthesis of proteins.
2. 4C content of DNA.
3. 2C content of DNA.
4. Synthesis of RNA.

When a cell is viewed under the microscope, it does
not show golgi complex, endoplasmic reticulum,
nucleolus, nuclear envelope in which stage of cell
division?

1. Early prophase 

2. Late prophase

3. Interphase 

4. Telophase