Question

The Punnett square shown here indicates a cross between two parents, one with alleles BB and the other with alleles Bb. Select the correct entry for the upper right box in the Punnett square, which is indicated with the letter, x:

a. Bb
b. bB
c. BB
d. bb

Answer 1

The correct entry for the upper right box in the Punnett square is bb, representing the combination of the recessive allele from both parents.

Step-by-step explanation:

The correct entry for the upper right box in the Punnett square, which is indicated with the letter x, is bb. In this Punnett square, the parents have alleles BB and Bb. When these alleles are crossed, the possible combinations in the offspring are BB, Bb, Bb, and bb. The upper right box represents the combination of the recessive allele from both parents, which is bb.