Question

Describe how meiosis causes this variation and
explain the advantage of variation to the species. (5 marks)

Accepted Answer

1.Crossing-over; [IGNORE any wrong ref. to timing]
2. Independent/random assortment/orientation/segregation of
(homologous) chromosomes in meiosis I;
3. Independent/random assortment/orientation/segregation of
chromatids in meiosis II;
+ Any three from:

4. Different adaptations / some better adapted;
5. Some survive / example described;
6. To reproduce;
7. Pass on gene/allele;
8. Allows for changing environment/different environment/example
described;

Meiosis Variation Independent/Random Assortment/Orientation/Segregation Describe Explain Advantage Species