- Random or independent assortment shuffles genes into unique combinations, this is the reason for variation in the way children look from their parents and from their siblings.
- Cells dividing during meiosis cause homologous chromosomes to randomly distribute and give gametes (specialized sex cells) unique combinations of chromosomes and a unique genetic makeup.
- Without genetic variation, we would all be the same and the human population wouldn’t be able to survive things like disease.
It was interesting to learn about this because it really shows how we all look so different, and without this process we would be completely the same. It's intriguing that something so small as variation of chromosomes can affect how we all look and keep our appearances varied.
Citations:
https://www.sciencelearn.org.nz/resources/208-meiosis-inheritance-and-variation
https://www.ck12.org/biology/genetic-variation/lesson/Genetic-Variation-Advanced-BIO-ADV/
What do you mean by the "daughter cells" from your first point? - Kylie Dye
ReplyDeleteDaughter cells are the result of the "parent cells" (the egg and sperm) and are identical to their parent cell.
DeleteHow would genetic variation help in an epidemic and how does random assortment affect human survival?
ReplyDelete