NEETBotanyCell Cycle and Cell Division
Match List I with List II: List I List II A. Zygotene I. Terminalisation of chiasmata B. Pachytene II. Dissolution of synaptonemal complex C. Diplotene III. Appearance of recombination nodules D. Diakinesis IV. Formation of synaptonemal complex Choose the correct answer from the options given below:
Options
- AA-IV, B-III, C-II, D-I
- BA-IV, B-II, C-III, D-I
- CA-III, B-IV, C-II, D-I
- DA-IV, B-III, C-I, D-II
Correct answer
A. A-IV, B-III, C-II, D-I
Step-by-step solution
Zygotene (A) is characterised by the pairing of homologous chromosomes and the formation of the synaptonemal complex (IV). Pachytene (B) is characterised by the appearance of recombination nodules (III), which are the sites where crossing over occurs. Diplotene (C) is recognised by the dissolution of the synaptonemal complex (II) and the tendency of recombined homologous chromosomes to separate, forming chiasmata. Diakinesis (D) is marked by the terminalisation of chiasmata (I). Thus, the correct matching is A-IV,