Question

Dominant allele for feather color (Blue) in birds = B Recessive allele for

feather color (Red) = b Dominant allele for wing shape (Soaring) = S
Recessive allele for wing shape (Elliptical) = s Two heterozygous parents
mated and formed offspring. Using a dihybrid cross, predict the probability
in a percentage of the likelihood that their offspring will have blue feather
color and elliptical shaped wings? (Please round your percent to the
nearest whole number.) *
​

Answer 1

19%

Step-by-step explanation:

The probability of that their offspring will have blue feather color and elliptical shaped wings would be 19%.

Blue feather color is dominant and represented by the allele B, the alternate recessive version (b) conditions red color.

Soaring wing shape is dominant and represented by the allele S, the alternate recessive version (s) conditions elliptical wing shape.

Heterozygous individuals for the two traits will have the genotype BbSs.

BbSs x BbSs

Progeny:

9 B_S_ - blue feather, soaring wing

3 bbS_ - red feather, soaring wing

3 B_ss - blue feather, elliptical wing

1 bbss - red feather, elliptical wing.

The probability of the progeny having blue feather with elliptical wing is therefore 3/16.

3/16 = 3/16 x 100 = 18.75%

To the nearest whole number = 19%

See the attached image for the Punnet's square analysis of the cross.