Given below are two statements. Statement 1: Chromosomes become gradually visible under light microscope during leptotene stage. Statement 2: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex. In the light of the above statements, choose the correct answer from the options given below.
Answer: (D) Both Statement I and Statement II are true. Answer: Both Statement I and Statement II are true Solution: During leptotene, the first sub-stage of prophase I, the chromosomes become gradually visible under the light microscope, so Statement I is true.
- A.Both Statement I and Statement II are false
- B.Statement I is true but Statement II is false
- C.Statement I is false but Statement II is true
- D.Both Statement I and Statement II are true✓
Correct Answer
(D) Both Statement I and Statement II are true
Solution & Explanation
Answer: Both Statement I and Statement II are true Solution: During leptotene, the first sub-stage of prophase I, the chromosomes become gradually visible under the light microscope, so Statement I is true. The beginning of diplotene is recognised by the dissolution of the synaptonemal complex, making Statement II true as well; hence both statements are correct. NCERT Reference: Ch 10, p.126, lines 24-28 — "the chromosomes become gradually visible"