How do you write the allele for a dominant trait?

With a capital letter.

Explanation:

Dominant traits are represented with capital letters like "HH" while recessive are represented with lowercase , "hh."

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics