In the given exercise, an Assertion is followed by the corresponding Reason. Mark the suitable answer from the given options:
1.
| Assertion: | Synthesis of histone proteins takes place in S phase. |
| Reason: | Formation of spindle fibres and cell growth occur in the G2 phase. |
2.
| Assertion: | During anaphase of mitosis, chromosomes breaks at centromeres and sister chromatids move towards the opposite ends of the cell. |
| Reason: | Anaphase is the longest stage of mitosis. |
3.
| Assertion: | Mitosis plays a vital role in the growth, organ development and increase in body size of a multicellular organism. |
| Reason: | All the somatic cells are formed by mitosis. |