| A | B |
|---|
| mutations | any event which changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype |
| genetic variation | diversity in a population or species as a result of new gene combinations |
| genotype | combination of genes at a single loci |
| diploid | having a complete pair of chromosomes located in body cells |
| haploid | having only one homolog chromosome; located in sex cells |
| heritability | measures the degree to which offspring resemble their parents for a particular trait |
| heterosis | marked vigor or capacity for growth often exhibited by crossbred animals; hybrid vigor |
| genes | basic physical unit of heredity consisting of a DNA sequence at a specific location on a chromosome |
| allele | alternative form of a gene |
| phenotype | expression of a specific trait determined by both genetic makeup and environmental influences |
| genetics | science of heredity in living organisms |
| DNA | deoxyribonucleic acid; molecule which forms the genetic code |
