NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
Select incorrect statements. 1 . Diplotene stage is not recognized by the dissolution of the synaptonemal complex. 2 . Recombination nodules contain a recombinase enzyme. 3 . Interkinesis is generally short-lived. 4 . In anaphase II separation of homologous chromosomes (bivalent) separate to opposite poles.
Options
- A1 and 2
- B2 and 3
- C1 and 4
- D1 and 3
Correct answer
C. 1 and 4
Step-by-step solution
In the diplotene stage, the synaptonemal complex starts dissolution or disintegrating and the chromosomes start separating after crossing over. Recombination nodules contain a recombinase enzyme which helps in the process of recombination. Separation of homologous chromosomes (bivalent) occurs during anaphase I and this is known as disjunction, it results in a reduction in chromosome number to half. In anaphase II chromatids of a chromosome separate to opposite poles with the splitting the centromere taking place.