Bb mates with bb?

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4 points
The recessive trait will show up in about 50% of the offspring.
All the offspring will exhibit the recessive trait.
The dominant trait will show up in about 75% of the offspring.
All the offspring will exhibit the dominant trait

The correct answer is: All the offspring will exhibit the dominant trait.

When two individuals with genotype Bb mate, each parent can pass on either a dominant (B) or recessive (b) allele to their offspring. The possible genotypes of the offspring are BB, Bb, and bb.

The dominant trait will be expressed in individuals with genotype BB and Bb, while the recessive trait will only be expressed in individuals with genotype bb.

Since both parents have at least one dominant allele (B), the recessive trait will not be expressed in any of the offspring. Therefore, all the offspring will exhibit the dominant trait.