Question

a bobtail is dominant over a normal tail. based on the punnett square shown, how many puppies can we expect to have a bobtail? three two one four

Explanation:

Step1: Analyze Punnett square

The Punnett square shows the cross of two parents with genotype \( Bb \).

Step2: Determine offspring genotypes

The possible genotypes from \( Bb\times Bb \) are \( BB:Bb:bb = 1:2:1 \). Since \( B \) (bobtail) is dominant, \( BB \) and \( Bb \) will show the bobtail phenotype.

Step3: Count bobtail - showing genotypes

There are 3 genotypes (\( BB, Bb, Bb \)) out of 4 total genotypes (\( BB, Bb, Bb, bb \)) that show the bobtail phenotype.

Answer:

Four