PTC tasting is a dominant trait.?
Finn and Maggie both can taste PTC but their daughter, Celia, cannot. If Finn and Maggie have another child what is the probability that the child will not taste PTC?
- Asst ProfLv 77 years agoFavorite Answer
1/4. Since "tasting" is dominant, it can be represented by T. If they have a daughter that is not a taster, her genotype must be tt. Finn and Maggie must be heterozygous, Tt. Therefore, the Punnett square is:
So, there is a 1/4 chance of any child being a non-taster, regardless of how many children they have; the probability is always the same.Source(s): 40 years teaching Biology and basic Genetics
- Anonymous7 years ago
yes ptc tasting is a dominant trait.and there is always 50% chances of people that can taste it