Characteristics of Sexual Reproduction
Requires a female and male parent
Each parent donates ½ of the Chromosomes/Genes/DNA
Requires fertilization - the combining of gametes
Produces genetic diversity - variation among and within species that is attributable to differences in hereditary material. www.for.gov.bc.ca/hfd/library/documents/glossary/G.htm
Now, lets talk about this diversity. My sister has a big nose. Sheís not too thrilled with having this big nose. So letís try to convince her itís a good thing. Write down a reason it might be good to have a big nose.
Letís run with the answer that she would have a better ability to pick up the scent of food. What would happen if the food supply suddenly decreased and no one, including my sister, had a big nose that could sense this food supply?
But, my sister does have a big nose. So the human species is saved. Kinda makes big noses pretty attractive now, doesnít it?
So what can we conclude about Sexual Reproduction?
it produces diversity
diversity ensures survival of a species in an environment that changes