1. Tardigrade
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  3. Biology
  4. In which stage of the first meiotic division two sister chromatids are formed ?

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Q. In which stage of the first meiotic division two sister chromatids are formed ?

WBJEEWBJEE 2011Cell Cycle and Cell Division

Solution:

The pachytene stage is characterized by the formation of recombination nodules in presence of enzymes known as recombinase. The recombination nodules help the homologous chromosomes, to exchange their genetic material or chromatid segments by a process known as crossing over.