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The pattern of inheritance can be predicted from data if one is given the parent or offspring genotypes or phenotypes. Two organisms, with genotypes BbDD and BBDd, are mated. Assuming independent assortment of the B/b and D/d genes, determine the genotypic ratios in offspring that would occur. *

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Answer:

1BBDD:1BbDD:1BBDd:1BbDd

Explanation:

BbDD genotype is crossed with BBDd genotype.

BbDD gametes will be: BD, BD, bD, bD

BBDd gametes will be: BD, BD, BD, Bd

During fertilization, the gametes will randomly unite to give offspring with the following genotypes (Please see the attached Punnet Square image)

BBDD = 4

BbDD = 4

BBDd = 4

BbDd = 4.

Hence, the genotypic ratio of the offspring will be:

1BBDD:1BbDD:1BBDd:1BbDd

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