What is sexual reproduction? List its four significances

What is sexual reproduction? List its four significances.
Answer:
Two major processes namely formation of gametes and fusion of gametes constitute sexual reproduction.
Its significances are:

  1. Incorporates the process of combining DNAfrom two different individuals during reproduction.
  2. Increases genetic variation.
  3. Promotes diversity in the offsprings.
  4. Plays a role in the origin of new species.