Question

Exchange of paternal and maternal chromosome material during cell division is

• A. Synapsis
• B. Dyad formation
• C. Bivalent formation
• D. Crossing over

Answer 1

The correct option is D Crossing over

• Crossing over is the process that occurs in meiosis I.
• The genetic material gets exchanged between the non-sister chromatids of the two homologous chromosomes which are obtained as one from the mother (maternal) and one from the father (paternal).
• The genetic exchange is responsible for the variation in the genetic composition of the offspring
  

So, the correct answer is 'Crossing over'