NEETBotanyCell Cycle and Cell Division
Match List-I with List-II. List-I List-II (A) Zygotene (I) Terminalisation of chiasmata (B) Pachytene (II) Appearance of recombination nodules (C) Diplotene (III) Formation of synaptonemal complex (D) Diakinesis (IV) X-shaped structures called chiasmata Choose the correct answer from the options given below:
Options
- A(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
- B(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- C(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
- D(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
Correct answer
A. (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
Step-by-step solution
The substages of prophase I in meiosis are characterized by specific chromosomal events: (A) Zygotene is marked by the pairing of homologous chromosomes (synapsis) accompanied by the formation of the synaptonemal complex. (Matches III) (B) Pachytene is characterized by the appearance of recombination nodules, which mark the sites where crossing over occurs between non-sister chromatids. (Matches II) (C) Diplotene is recognized by the dissolution of the synaptonemal complex and the tendency of recombined homologous