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NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice

The complex formed by a pair of synapsed chromosomes is called a

Options

  1. Akinetochore
  2. Bbivalent
  3. Caxoneme
  4. Dequatorial plate

Correct answer

B. bivalent

Step-by-step solution

Prophase 1 of Meiosis 1 shows presence of homologous chromosomes that start paring together. This forms a complex known as synaptonemal complex. This formation takes place during Zygotene stage of Prophase 1 . This consists of a pair of chromosomes with four chromatids and this is known as bivalent or tetrad. The crossing over occurs between non sister chromatids of bivalent in the next stage.

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