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Agata [3.3K]
3 years ago
11

What prevents the expression of a recessive allele

Chemistry
2 answers:
Nikolay [14]3 years ago
7 0
Usually the presence of a dominant version of allele masks the expression of a recessive allele. A recessive allele is only phenotype is only expressed when 2 recessive alleles combine. 
astra-53 [7]3 years ago
3 0
Dominant alleles prevent the expression of a recessive allele, unless it is a genotype of two recessive alleles.
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