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?
Explanation: In this situation the proportion of their children that would not be able to do the taste PTC will be 1/4 because of the calculation of the alleles.
