The following diagram refers to a typical cell cycle.

Identify the parts marked as X, Y and Z.

1. X - G₁; Y - S; Z - G₂                      2. X - G₂; Y - S; Z - G₁

3. X - G₀; Y - S; Z - G₂                     4. X - G₁; Y - G₂; Z - G₀

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres:

(1) Metaphase I    

(2) Metaphase II  

(3) Anaphase I     

(4) Anaphase II

Select the correct statement about G₁ phase:

(1) Cell is metabolically inactive

(2) DNA in the cell does not replicate

(3) It is not a phase of synthesis of macromolecules

(4) Cell stops growing

Which of the following is a continuous process?

1. Cell growth

2. Cell differentiation

3. DNA duplication

4. Cell division

Cell growth is a continuous process in terms of

A.      Increase in protein content

B.      Increase in DNA content

C.      Increase in cytoplasmic content

D.     Increase in RNA content

The process of distribution of duplicated DNA in the daughter cells is

A.      Easy process

B.      A complex series of events

C.      A single complex process

D.     Easiest process in all the events bof cell cycle.

The division time for human cell is

A.      24 hr

B.      1 hr

C.      23 hr

D.     90 minutes

The inter phase in human cell cycle lasts for

A.      24 hrs

B.      95% part of cell cycle

C.      More than 95% of the duration of cell cycle.

D.     Around 90% of the duration of cell cycle

The M phase starts with

A.      Nuclear division

B.      Cytokinesis

C.      Karyokinesis

D.     Both A and C

The phase between S phase and M phase of a Cell cycle is

A.      G1

B.      G2

C.      Interphase

D.     Dividing phase