If there are 16 alleles for tongue curling, then 16 is the maximum and 8 is the minimum number of people exhibiting the trait.
What is a dominant trait?
In genetics, complete dominance is a phenomenon where only one allele is sufficient to express a trait.
A homo-zygous is an individual having the same alleles or gene variant for a specific gene locus.
A heterozygous is an individual having two different alleles or variants for a specific gene locus.
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