JIPMER2015BotanyCell Cycle and Cell Division
The non-disjunction, in meiosis may result is extra copy of a chromosome in a sperm cell. During which phase the above phenomenon may occur?
Options
- AProphase-l, prophase-II
- BMetaphase-I, anaphse-II
- CAnaphase-I, anaphase-II
- DAnaphase-I, telophase-II
Correct answer
C. Anaphase-I, anaphase-II
Step-by-step solution
In anaphase-I and II chromosomes become shorter and thicker and migrate towards opposite poles of the cell. In case of non-disjunction of chromosomes an extra copy of a chromosome will be present in the cell.