Which of the following correctly related with given diagram? (i) Sequence of cell cycle = G1 – S – G2 – M phase(ii) A cell exits G1 phase to enter an inactive state – Quiescent or G0(iii) G1 phase is the interval between mitosis and initiation of DNA replication(iv) In G1 phase DNA synthesis occurs
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a
(i), (ii) and (iii)
b
(ii) and (iii) only
c
(i), (ii), (iii) and (iv)
d
(i) and (iii)
answer is A.
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Detailed Solution
DNA synthesis occurs in S phase. G1 phase is the interval between mitosis and initiation of DNA replication. Cells exit in G1 stage and enter into inactive stage called G0 stage. The various stages in a sequence in a cell cycle are G1, S, G2 and M stages.
Which of the following correctly related with given diagram? (i) Sequence of cell cycle = G1 – S – G2 – M phase(ii) A cell exits G1 phase to enter an inactive state – Quiescent or G0(iii) G1 phase is the interval between mitosis and initiation of DNA replication(iv) In G1 phase DNA synthesis occurs