Simple Description

Referring to an allele that will only be expressed if inherited from both parents

Further Detail

A recessive allele will be masked by a dominant. For example if brown eyes (B) is dominant over green eyes (b) and both parents had the genotypes Bb, then the only way for one of their children to have green eyes is if they inherit one b allele from each (bb).

Related Words:

• Chromosome
• Allele
• Dominant

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