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Two People (Both Heterozygotes)are Able to Taste a Chemical Substance

Question 14

Multiple Choice

Two people (both heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T) . The inability to taste PTC is caused by a recessive allele (t) . What proportion of their children would be expected NOT to be able to taste PTC?


A) 3/4
B) All
C) 1/4
D) 2/3

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