If a person inherits two different alleles for a trait, they are said to for that trait. but, in order to express a trait, individuals must inherit two copies of that allele. no matter what combination of alleles a person inherits, the expression of those genes determines an individuals' physical characteristics . the choices are dominant, heterozygous, recessive, genotype phenotype, homozygous

Heterozygous, Dominant, Phenotype. I'm pretty sure you're in sixth grade becuase im in 8th and I learned that is 6th.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.