A recessive gene is masked over or hidden in the presence of a dominant gene.
What is a recessive gene?
A gene or an allele, which is masked when a dominant gene is there. It is considered as the weak form of a gene, which does not get expressed in the presence of the dominant gene.
The recessive alleles or genes only show their influence if the individual has two copies of the allele, that is, in the homo-zygous state. On the other hand, dominant alleles can demonstrate their influence even if the individual possesses single copy of the allele, that is, in the hetero-zygous state.
Thus, in the given question the vocabulary term is recessive gene.
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