Following are the stages of cell division: A. Gap 2 phase B. Cytokinesis C. Synthesis phase D. Karyokinesis E. Gap 1 phase Choose the correct sequence of stages from the options given below:
Answer: (C) E-C-A-D-B. Answer: E-C-A-D-B Solution: Interphase proceeds as G1 phase (E) then S/synthesis phase (C) then G2 phase (A), after which M phase begins with karyokinesis (D, nuclear division) and ends with cytokinesis (B, cytoplasmic division).
- A.E-B-D-A-C
- B.B-D-E-A-C
- C.E-C-A-D-B✓
- D.C-E-D-A-B
Correct Answer
(C) E-C-A-D-B
Solution & Explanation
Answer: E-C-A-D-B Solution: Interphase proceeds as G1 phase (E) then S/synthesis phase (C) then G2 phase (A), after which M phase begins with karyokinesis (D, nuclear division) and ends with cytokinesis (B, cytoplasmic division). Thus the correct order is E-C-A-D-B; the other options misplace the synthesis phase or reverse karyokinesis and cytokinesis. NCERT Reference: Ch 10, p.121, lines 25-27 — "separation of daughter chromosomes (karyokinesis) and usually ends with division of cytoplasm (cytokinesis)"