individuals tend to vary in their taste sensitivity. Is it possible that this trait may be linked to a person’s genetics? A scientist identified the genotype of 30 individuals for a gene she believes to be responsible for taste sensitivity. She compares taste sensitivity across the homozygous dominant, heterozygous, and homozygous recessive individuals. Q) What is the explanatory variable here? Q) What kind of variable is the subject’s genotype?

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