Research on SIDS has shown that babies should be:

When newborns are held horizontally on their stomachs, their arms and legs stretch out.  This response is known as the:

In comparison with genetic drift, evolution by natural selection is

Which of the following is not an assumption of the Hardy-Weinberg theorem?

By transferring neural crest cells from a duck to a quail and vice versa, Schneider and Helms demonstrated that 

Hox Genes Phylogeny.png The figure above shows the number of Hox gene clusters in different groups of animals. What do you notice about the sequence of Hox genes in each cluster? Where do you see a reversal?  Does this make sense to you for the group that it is in? Where do you see the loss of Hox genes? Where do you see duplication of Hox genes

The study of allele frequencies and distributions is

We observe a case of industrial melanism in which the dark coloration is caused by a single dominant gene D and light coloration is caused by a recessive gene d. In a mark and recapture experiment, we find the fitness of dark moths in a polluted area is 1.5 offspring per generation and the light moths is 0.9 offspring per generation. What is the relative fitness (W) of the dark and light phenotype? , What is the selection coefficient (S) against the light phenotype?

Proponents of the neutral theory of molecular evolution believe that most substitutions are fixed by _______.

If the size of a population increases drastically,