NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
Fill in the blanks: i. The morphology of the chromosome is studied at __A___. ii. Recombination nodule appears at __B__ stage of prophase-I. iii. __C__ induces polyploidy by inhibiting polymerisation of spindles. iv. True reduction in number of chromosome occurs in __D__ stage.
Options
- AA - Anaphase, B - Pachytene
- BC - Mustard gas, D - Metaphase I
- CA - Prophase, C - Colchicine
- DB - Pachytene, D - Anaphase I
Correct answer
D. B - Pachytene, D - Anaphase I
Step-by-step solution
Recombination takes place at the pachytene stage and reduction of chromosomes takes place in anaphase-I stage