CIE A Level - Study guides, Class notes & Summaries

cie a level biology chapter 17 evolution How does lateral gene transfer affect variation? - Answer Occurs between organisms of the same species or organisms of different species. It increases genetic variation in any specie that picks up the "new" genes. Height in humans are an example of what kind of trait? - Answer -Polygenetic Each gene of a polygenic trait often has two or more ______. - Answer Alleles If a trait made an organism less likely to survive and reproduce, what woul...