Select the correct statements.
A. Tetrad formation is seen during leptotene.
B. During anaphase, the centromeres split and chromatids separate.
C. Terminalization takes place during pachytene.
D. Nucleolus, Golgi complex and ER are reformed during telophase.
E. Crossing over takes place between sister chromatids of homologous chromosome.
Choose the correct answer from the options given below:

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A, C and E only

A and C only

B and E only

B and D only

answer is C.

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Detailed Solution

B and D are correct and A, C, E are incorrect.
A. Tetrad formation takes place in zygotene, but it is clearly visible in pachytene stage.
B. During anaphase, due to splitting of centromere, chromatids get separated and act as individual chromosomes. It is responsible of doubling of chromosomes.
C. The fi nal stage of meiotic prophase I is diakinesis. This is marked by terminalisation of chiasmata.
D. The nuclear membrane, nucleolus, Golgi complex and ER are reformed during telophase.
E. Pachytene stage is characterised by the appearance of recombination nodules, the sites at which crossing over occurs between non-sister chromatids of the homologous chromosomes.

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