PLEASE HELP: To most humans, the chemical PTC tastes very bitter. The ability to taste it is a dominant trait. People who can’t taste PTC exhibit the recessive trait. Which genotype represents people who can’t taste the chemical?
a) TT
b) tt
c) Tt
d) TTtt

Respuesta :

tt
I believe this is the answer because it is completely recessive.
A combination of TT or Tt would result in a dominant phenotype.

The genotype represents people who can’t taste the chemical will be "tt".

What is genotype?

An organism's genotype has been made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype.

What is chemical?

Any material with a known composition would be a chemical. To put it another way, a chemical always consists of the same "substance."

People with the TT or Tt genotype already have "taster" phenotype, while people also with tt genotype have such "non-taster" phenotype, making it possible to explain the inability to taste PTC as an autosomal recessive trait.

Therefore, The genotype represents people who can’t taste the chemical will be "tt".

To know more genotype and chemical

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