NEETBotanyCell Cycle and Cell Division
Match List-I with List-II regarding the sub-stages of prophase I and their characteristic events. List-I List-II (A) Zygotene (I) Terminalisation of chiasmata (B) Pachytene (II) Crossing over (C) Diplotene (III) Synapsis (D) Diakinesis (IV) Dissolution of synaptonemal complex Choose the correct answer from the options given below:
Options
- A(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
- B(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
- C(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- D(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
Correct answer
D. (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
Step-by-step solution
Zygotene is characterized by the pairing of homologous chromosomes, a process called synapsis, which is accompanied by the formation of the synaptonemal complex. Hence, (A) matches with (III). Pachytene is the stage where crossing over occurs between non-sister chromatids of the homologous chromosomes. Hence, (B) matches with (II). Diplotene is marked by the dissolution of the synaptonemal complex and the appearance of chiasmata. Hence, (C) matches with (IV). Diakinesis is the final stage of prophase I, marked by t