BI-1506

Key terms in inheritance

Biology · Secondary 4 · Easy · Key terms in inheritance

A boy inherits allele

A

from his mother and allele

a

from his father for a particular gene. The allele

A

is dominant over

a

. What will be the boy’s phenotype for this characteristic?

He shows the dominant characteristic controlled by allele $A$ .
He shows the recessive characteristic controlled by allele $a$ .
He shows a blend of the dominant and recessive characteristics.
He shows neither characteristic because the alleles cancel out.

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