A chart or "family tree" that tracks which members of a family have a particular trait

the study of heredity

an organism that has two different alleles for a trait (hetero=different)

passing of traits from parents to offspring

an organism that has two identical alleles for a trait (homo=same)

a complex molecule containing the genetic information that makes up the chromosomes

genetic makeup, or alleles (the initials)

Austrian monk and botanist whose experiments with garden peas led to the science of genetics

physical appearance, or visible trait (how it looks)

threadlike structures made of DNA molecules that contain the genes

a chart that shows all the possible ways alleles can combine in a genetic cross

the different forms of a gene

the allele whose trait always shows up in an organism when the allele is present

a segment of DNA on a chromosome that codes for a specific trait

the allele whose trait is hidden whenever the dominant allele is present