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artcher [175]
3 years ago
5

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
Chemistry
2 answers:
IrinaK [193]3 years ago
6 0
Tt
I believe this is the answer because it is completely recessive.
A combination of TT or Tt would result in a dominant phenotype.
algol133 years ago
3 0
A simply because of I'm a pretty good guesser, Hope this helps.
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In
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The question is incomplete, here is the complete question:

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and water react to form acetylene and calcium hydroxide:

CaC_2(s)+2H_2O(g)\rightarrow C_2H_2(g)+Ca(OH)_2(s)  

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6C_2H_2(g)+3CO_2(g)+4H_2O(g)\rightarrow 5CH_2CHCO_2H(g)  

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<u>Answer:</u> The net chemical equation is written below.

<u>Explanation:</u>

The intermediate balanced chemical reaction are:

(1)  CaC_2(s)+2H_2O(g)\rightarrow C_2H_2(g)+Ca(OH)_2(s)     ( × 6 )

(2)  6C_2H_2(g)+3CO_2(g)+4H_2O(g)\rightarrow 5CH_2CHCO_2H(g)  

To omit acetylene from the net chemical reaction, we multiply Equation (1) by 6.

<u>Equation 1:</u>  6CaC_2(s)+12H_2O(g)\rightarrow 6C_2H_2(g)+6Ca(OH)_2(s)

<u>Equation 2:</u>  6C_2H_2(g)+3CO_2(g)+4H_2O(g)\rightarrow 5CH_2CHCO_2H(g)  

<u>Net chemical equation:</u>   6CaC_2(s)+3CO_2(g)+16H_2O(g)\rightarrow 5CH_2CHCO_2H(g)+6Ca(OH)_2(s)

Hence, the net chemical equation is written above.

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