Question

Match the following events that occur in their respective phases of cell cycle and select the correct option :

(a) G1 phase                         (i) Cell grows and organelle duplication

(b) S phase                            (ii) DNA replication and chromosome duplication

(c) G2 phase                         (iii) Cytoplasmic growth

(d) Metaphase in M-phase (iv) Alignment of chromosomes

(1) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

(2) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

(3) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(4) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)

Answer 1

Answer (1) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

Sol. Phases of cell cycle and their respective events are :

(a) G1 phase – Cell grows and cell organelle duplication

(b) S phase – DNA replication and chromosome duplication

(c) G2 phase – Cytoplasmic growth

(d) Metaphase in M-phase – Alignment of chromosomes