The answer is D, all of the above.
Answer:
Phenotype: Brown Eyes, blond hair.
Genotype: a Aa, TT
Explanation:
Phenotypes are visible traits.
Genotypes are non-visible.
y(p - t) = 2pt.
yp - yt = 2pt.
yp = yt + 2pt.
t = yp/(y + 2p).
-John
