Question

Genetic Problems and the Punnett Square

1. In guinea pigs, black coat color is dominant,B, to white coat color,b. Show the expected offspring from the mating of the following parents

a. Black Male Bb x brown female bb
Genotypic Ratio:
Phenotypic Ratio:

b. Black Male Bb x black female BB

Genotypic Ratio:
Phenotypic Ratio:

c. Brown male bb x black female BB

Genotypic Ratio:
Phenotypic Ratio:

Answer 1

The punnett square for a, b, and c has 4 squares each....

Answer 2

In tomatoes, red fruit color is dominant,R, to yellow fruit color,r. A farmer has tomatoes that produces either red or yellow tomatoes. He has signed a contract with a large seed company to provide pure red,RR. and pure yellow seeds, rr. They do not want any hybrids. Ho could the farmer tell if is red tomatoes are pure or hybrid? How can you determine the genotype of an unknown dominant phenotype?

Answer 3

Thx!