Q1. For a diploid species, imagine one set of 100 demes, each with a constant size of 50 individuals, and another set of 100 demes, each with 100 individuals. (a) If in each deme frequencies of neutral alleles A1 and A2 are 0.4 and 0.6 respectively, what fraction of demes in each set is likely to become fixed for allele A1 versus A2?

Q2. 1) Explain the differences in head movement available to fish, amphibians, reptiles/birds, and mammmals.

2) In Brief explain the differences in jaw attachment among the following 5 group: Agnathans, primitive gnathostomes, fish, amphibians/reptiles/ birds, and mammals.