Question

analyze the table below and answer the question that follows.
if having dimples is dominant (d) and not having dimples is recessive (d), which of the following correctly describes the phenotypes in the table?
a. all of the offspring have dimples
b. two of the offspring have dimples and two do not have dimples
c. three of the offspring have dimples and one does not have dimples
d. all off the offspring will not have dimples

Explanation:

• In genetics, a dominant allele (D) masks the recessive allele (d).
• Genotype DD: has dimples (dominant phenotype).
• Genotype Dd: has dimples (dominant phenotype as D is present).
• Genotype dd: does not have dimples (recessive phenotype as only d alleles are present).
• Counting the genotypes in the table: DD (1), Dd (2), dd (1). So, 3 with dimples (DD and Dd) and 1 without (dd).

Answer:

C. three of the offspring have dimples and one does not have dimples