Answer:
heterozygous- Has different letters. E.g. Tt (different alleles for trait)
h0m0zygous- Has same letters. E.g. TT or tt (same alleles for trait)
Genotype- The letters that make up the individual. E.g. TT or Tt
Phenotypes- The physical characteristics of the particular trait. E.g. Tall or short
Step-by-step explanation:
see answer.