In the case of PTC tasters and non-tasters in | vedclass

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(C) In genetics,a dominant allele $(T)$ expresses its trait even in the presence of a recessive allele $(t)$. $1$. Individuals with the genotype $TT$

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$tt$

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(C) In genetics,a dominant allele $(T)$ expresses its trait even in the presence of a recessive allele $(t)$. $1$. Individuals with the genotype $TT$ (homozygous dominant) will be tasters. $2$. Individuals with the genotype $Tt$ (heterozygous) will also be tasters because the dominant allele $T$ masks the effect of the recessive allele $t$. $3$. Individuals with the genotype $tt$ (homozygous recessive) lack the dominant allele $T$ required to express the tasting trait. Therefore,they are non-tasters and are unable to taste $PTC$.

In the case of $PTC$ tasters and non-tasters in humans,$T$ represents the dominant allele and $t$ represents the recessive allele. Which of the following genotypes is unable to taste $PTC$?

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