Question

For each offspring genotype in the Punnett square you just completed, determine the phenotype. In other words, what is the predicted fur color and eye color of the offspring? Using your Punnett square from the last step, fill in the predicted fraction for each phenotype in the data table below.

Black Fur and Black Eyes Black Fur and Red Eyes White Fur and Black Eyes White Fur and Red Eyes
Predicted Fraction
/16
/16
/16
/16

Answer 1

I don't have the Punnett square you mentioned, so I need either the parental genotypes or the filled Punnett square to give exact phenotype fractions. If you paste that I will fill the table.

Common helpful example (if your cross was a standard dihybrid cross with both parents heterozygous for both traits: BbEe × BbEe, where B = black fur (dominant), b = white fur (recessive), E = black eyes (dominant), e = red eyes (recessive)):

- Black fur & black eyes = 9/16
- Black fur & red eyes = 3/16
- White fur & black eyes = 3/16
- White fur & red eyes = 1/16

How I got those: in a BbEe × BbEe cross you get the 9:3:3:1 phenotypic ratio typical of independent assortment. If your parents or alleles are different, tell me the parental genotypes (or your Punnett square) and I will compute the exact fractions.