If deleterious allele is recessive: qhat = sqrt(u/s); u = mutation rate, s = selection coefficient. 1 >= s >= 0
then selection against the allele.
If deleterious allele is dominant qhat = u. In other words the mutation rate is equal to the equilibrium
BIOL 415 Exam 2 Study Questions
1. A. Selection alone would not only act on existing variants of alleles causing the repeated fixation
of beneficial alleles without the formation of new ones. Mutation alone acts as a weak force of
evolution and over very
Chapter 4: Phylogenetic Cladistics
Share DERIVED characters are called synapomorphies.
Shared characteristics are not always synapomorphies (eg eyes).
Synapomorphies are used to define clades.
Shared ancestral characteristics are called symplesiomorphie