NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
A given sample of somatic cell was treated with chemical X. It was found that chemical X inhibits chromatid separation. During somatic cell division process, the treated cell will reach which stage of division before being interrupted?
Options
- AAnaphase
- BMetaphase
- CTelophase
- DCytokinesis
Correct answer
B. Metaphase
Step-by-step solution
X is Colchicine is a mitotic inhibitor. It doesn't allow spindle fibres to be formed. Thus, condensation of chromosomes will occur and prophase will be completed. But metaphase won't be completed. The metaphase stage is characterised by all the chromosomes coming to lie at the equator with one chromatid of each chromosome connected by its kinetochore to spindle fibres from one pole and its sister chromatid connected by its kinetochore to spindle fibres from the opposite pole