An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

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An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called



a. dominant
b. codominant
c. incompletely dominant
d. recessive
e. pleiotropic


Answer: d. recessive


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