Evolutionary Analysis Exam 2 questions with correct answers

genetic variation Answer differences in alleles or genotype as shown by various phenotypes How was genetic variation studied early on? Answer they studied proteins, because different proteins are produced by genetic variations. (doesn't show variation in substitutions though) allele example Answer B, b genotype example Answer BB, Bb, bb environmental variation Answer if a phenotype changes because of the environment it is in, there is environmental variation -for example, someone who is blonder in sunny places than in less sunny places. genotype by environmental variation Answer when different genotypes respond differently to the environment. For example, maybe BB shows differences in different environments, but bb remains constant. plasticity Answer the degree a trait can evolve. So when a specific organism changes under different environments, it is NOT evolution. It is an evolved genotype to help organisms survive in environments that change a lot.