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Vesna [10]
3 years ago
7

In holstein cattle, the allele for black hair color (b) is dominant over the allele for red hair color (b), and the allele for p

olled (p), or lacking horns, is dominant over the allele for having horns(p). what is the expected phenotypic ratio of the offspring of a bbpp × bbpp cross if these alleles sort independently?††

Biology
1 answer:
ELEN [110]3 years ago
4 0

I hope you meant, a cross between BbPp and BbPp, else for bbpp x bbpp, all the progeny will be bbpp.

We need to work out a Punnett square to determine the genotypes resulting from the cross between BbPp and BbPp. The dyhybrid cross results in 16 different genotypes, of which a few have the same phenotypes.

It can be seen that there are 4 different kinds of phenotypes present, in the ratio 9:3:3:1.

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