Synapsis occurs between

Synapsis occurs between
  1. a male and a female gamete
  2. mRNA and ribosomes
  3. spindle fibres and centromere
  4. two homologous chromosomes

Solution

In zygotene of prophase-I, homologous chromosomes pair up. This process is called synapsis. One chromosome of the pair is from the male parent and one from the female parent.

Asked in: NEET 2009 (Screening)

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