NEET2026BiologyChapterActual
Which of the following stages of prophase I is characterised by the terminalisation of chiasmata?
Options
- ADiplotene
- BDiakinesis
- CPachytene
- DZygotene
Correct answer
B. Diakinesis
Step-by-step solution
Prophase I of meiosis is divided into five stages based on chromosomal behavior: leptotene, zygotene, pachytene, diplotene, and diakinesis. During leptotene, chromosomes become gradually visible under the light microscope. During zygotene, homologous chromosomes start pairing together, a process called synapsis, accompanied by the formation of the synaptonemal complex. During pachytene, crossing over occurs between non-sister chromatids of homologous chromosomes, leading to genetic recombination. During diplotene,