Question

Which genotypes can taste PTC?


Only TT


tt


TT and Tt

Answer 1

The ability to taste PTC (phenylthiocarbamide) is determined by a simple Mendelian trait where the tasting ability is dominant over the non-tasting trait. In this case:

- **TT** (homozygous dominant) and **Tt** (heterozygous) individuals can taste PTC.
- **tt** (homozygous recessive) individuals cannot taste PTC.

Therefore, the correct answer is **TT and Tt**.