How Is Variation Brought About In Offspring?

Question: How Is Variation Brought About In Offspring?

Asked by hszpytman to Chris, Kay, Kerstin, Lorna, Liv on 16 Mar 2010 in Categories: General.
- Kerstin Zechner answered on 17 Mar 2010:
  
  Variation in offspring occurs when a segment of the father’s and the mother’s chromosomes exchange genetic material. This exchange never occurs in the same way, so you will get a different size segment to your siblings and thus your characteristics will vary.

Question: How Is Variation Brought About In Offspring?