A recessive allele will influence the expression of a trait only when it
a. is paired with another recessive allele.
b. forms a heterozygous gene combination with another recessive allele.
c. forms a homozygous gene combination with a dominant allele.
d. is paired with a dominant but weak allele.
e. is contributed by the male parent.
Answer: a. is paired with another recessive allele.
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a. ?Dewey b. ?Angell c. ?Watson d. ?Skinner e. ?Seligman
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Fill in the blank(s) with correct word