The following are some notes for a standard population genetics style.

Please familiarise yourself with TeX Markup, as we'll be using this.

Alleles should be bold. Where an allele already has a name, e.g. for sickle cell anaemia, use that. Otherwise use A and a (? but suggests dominance; is there an alternative?)

Standardly, use p and q for allele frequencies, possibly r for a third. s is unfortunately used elsewhere for ${\displaystyle 1-w}$.

At equilibrium, they should be represented with an ampersand hat over the top:

\hat q

${\displaystyle {\hat {q}}}$

Allele frequency at equilibrium

The standard letter for fitness is w. Mean fitness should be represented as:

\bar w

${\displaystyle {\bar {w}}}$

Mean fitness