physical characteristics of organisms
the passing of traits from parents to offspring
the scientific study of heredity
always produce offspring with the same form of a trait as the parents. Alleles are identical.
an organism with 2 different alleles for the same trait.
the first generation in an experiment to mate.
the offspring of the first generation.
the offspring of the second generation.
the "factors" made of DNA that control traits.
the different forms of a gene
an allele whose trait always shows up in an organism.
an allele whose trait is masked by the presence of a dominant allele.