Genotype Versus Phenotype

words and music by Greg Crowther

I'll start this by noting
That genes encode proteins,
Which dictate cell function and form.
So if a gene mutates,
The cell may gain new traits
Far better or worse than the norm.

CHORUS:
Genotype -- ooh...
It's the genes you possess;
Nothing more, nothing less --
Versus phenotype -- ooh...
Your appearance and health
And reproductive success.

In some situations,
There is a mutation,
Yet phenotype stays just the same.
So guessing the genotype
Just from the phenotype
Can be a difficult game.

CHORUS

sheet music http://faculty.washington.edu/crowther/Misc/Songs/PDF/GenoPheno.pdf