Question

B b
B BB ??
b Bb bb
In some animals, brown eyes (B) are dominant over blue eyes (b). Which of these genotypes will complete this Punnett square?
A.
BB
B.
bb
C.
Bb
D.
B

Answer 1

Answer:

C. Bb

Explanation:

The given Punnett Square uses two Bb (One dominant and one recessive trait for both). Set the Punnett Square. The Punnett Square will take one trait from each parent:

$\left[\begin{array}{ccc}&B&b\\B&BB&Bb\\b&Bb&bb\end{array}\right]$

The missing offspring is the top right value, which results in Bb. Therefore, C. Bb, is your answer.

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Learn more about Punnett Squares, here:

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