Question

6. Kingsnakes look a bit like coral snakes in areas where there are no coral snakes. This is due to a) selective sweep b) reaction norm c) gene flow d) assortative mating e) selection differential 7. A population in which every year the largest individuals have a fitness advantage (and size is heritable) is experiencing a) stabilizing selection b) balanced selection c) directional selection d) no selection 8. When building a phylogeny of related species you should compare the sequence of nucleotides from - genes. a) orthologous b) analogous c) paralogous d) homonymous e ) synonymous 9. When examining a particular section of non-coding DNA you may find more similarity between chimps and gorillas than between humans and chimps due to a) neutral selection b) pleiotropic affects c) incomplete lineage sorting d) epistatic effects 10. When examining the relatedness of four rabbit species you sequence 35 sections of their genomes and then create candidate phylogenies using 30 randomly-chosen sections (from the 35 possible). You choose the most parsimonious phylogeny. You do this over & over again [1,000 times) and see which phylogenies are chosen most often. This is an example of a) neighbor joining b) bootstrapping c) maximum likelihood d) epistatic lineage sorting

Answer 1

According to guidelines, I can only give an answer for 1 question, but I am going to give 3 answers. Please post remaining as separate questions.

6. The correct answer is the reaction norm. A reaction norm also called a norm of reaction, describes the pattern of phenotypic expression of a single genotype across a range of environments.

7. Direction selection is the correct answer. As the larger size is favored over the smaller size.

8. The answer is orthologous. Orthologous genes are derived from the same ancestral sequence.