Answer:
B. Bb and bb only
Explanation:
The graphic represents a Punnett Square in which you could see the probabilities od the offspring from crossing genes.
The fathers here are Bb and bb.
You put one letter on each box.
In the four middle ones, you put the corresponding letter from the column and the row.
First Row
First square: Bb
Second square: bb
Second Row
First square: Bb
Second square: bb
All the possibilities are Bb Bb bb and bb this means 50% Bb and 50% bb
