Question

examine the punnett square below, which represents a cross between a male and a female pear tree.
what are the possible genetic variations of offspring in this cross?
(2 points)
bb
bb
bb

Explanation:

Step1: Fill in the Punnett square

For the top - left box: male gamete \(B\) and female gamete \(B\) combine to give \(BB\).
For the top - right box: male gamete \(B\) and female gamete \(B\) combine to give \(BB\).
For the bottom - left box: male gamete \(b\) and female gamete \(B\) combine to give \(Bb\).
For the bottom - right box: male gamete \(b\) and female gamete \(B\) combine to give \(Bb\).

Answer:

A. \(BB\), B. \(Bb\)