The new cells are to be produced for all except:

1. Growth
2. Movement
3. Repair
4. Replacement

The chromosomes are duplicated in :

1. M phase
2. G₁ phase
3. S phase
4. G₂ phase

In the cells of a human male body, the number of autosomes is :

1. 23 pairs
2. 22 pairs
3. 1 pair
4. 46 pairs

The basis of genetic variation in the living organisms during mitosis occurs due to :

1. Cell division
2. Mutation
3. Crossing over
4. Karyokinesis