Question

Match the lists and choose the correct option:

a.	$G_1$ phase	i.	Replication of DNA
b.	S-phase	ii.	Quiescent stage
c.	$G_2$-phase	iii.	Condensation chromatin
d.	$G_0$-phase	iv.	Protein synthesis
		v.	Interval between mitosis and initiate of DNA replication

• A. a-iii, b-ii, c-i, d-ii
• B. a-v, b-iv, c-i, d-iii
• C. a - v, b -i, c - iv, d-ii
• D. a v, b -ii, c-iii, d - iv

Answer 1

The correct option is C a - v, b -i, c - iv, d-ii

Interphase generally lasts at least 12 to 24 hours in mammalian tissue. During this period, the cell is constantly synthesizing RNA, producing protein and growing in size. Interphase can be divided into 4 steps: Gap 0 (G0), Gap 1 (G1), S (synthesis) phase, Gap 2 (G2).

Gap 0 (G0): There are times when a cell will leave the cycle and quit dividing

Gap 1 (G1): Cells increase in size in Gap 1, produce RNA and synthesize protein.

S Phase: To produce two similar daughter cells, DNA replication occurs during this S (synthesis) phase.

Gap 2 (G2): During the gap between DNA synthesis and mitosis, the cell will continue to grow and produce new proteins.

Hence answer is 'a - v, b -i, c - iv, d-ii'