Law of Dominance: there exists two alleles, dominant and recessive, for a given trait
• Rather than both alleles being expressed in a heterozygote, only the dominant allele will be expressed.
The presence of a recessive allele:
a) can be masked in the phenotype
b) can never be expressed in the phenotype
c) can always be determined from the phenotype
d) is expressed in the phenotype alongside a dominant allele
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What scientific concept do you need to know in order to solve this problem?
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