Biology

Mack

11 July, 19:24

A scientist has discovered a new gene in oysters. Oysters with the dominant allele for disease resistance 'R' have been found to tolerate polluted waters better than oysters with the recessive 'r' allele. What term is used to describe an oyster that has two identical dominant alleles (RR) for this gene?

A) genetic hybrid

B) homozygous dominant

C) heterozygous dominant

D) heterozyous recessive

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