NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
Correctly identify the stage of cell division shown in the given diagram.
Options
- AProphase-I
- BProphase-II
- CAnaphase of Mitosis.
- DMetaphase -II
Correct answer
A. Prophase-I
Step-by-step solution
Prophase - I - It is subdivided into 5 phases : A . Leptotene (Lepto = thin or delicate) - Chromosomes gradually become visible. - Condensation or compaction of the chromosomes continues. B . Zygotene (Zygo = related to pairing or joining) - Synapsis or pairing of chromosomes occur to bring the homologous chromosomes together. - Synapsis is followed by the formation of synaptonemal complex (or bivalent or tetrad). C . Pachytene (Pachy = thick) - Bivalent chromosomes clearly appear as tetrad as condensation is in pr