Reproduction, Heredity, and Growth Lesson One Vocabulary

a genotype made of 2 different alleles

• heterozygous

• homozygous

• dominant

• phenotype

a genotype made of 2 of the same alleles

• recessive

• homozygous

• dominant

• phenotype

the 2 alleles blend together to produce a trait

• complete dominance

• incomplete dominance

• codominance

• recessive

the traits from both parents appear in the offspring

• complete dominance

• incomplete dominance

• codominance

• recessive

molecules created based on the DNA code that are responsible for body functions, physical appearance, and some behaviors

• amino acids

• RNA

• Proteins

• blood cells

the passing of traits through genetic material from parent to offspring

• inheritance

• proteins

• dominance

• codominance

segments of DNA found in chromosomes that give instructions for producing a certain characteristic

• adenine

• guanine

• gene

• nucleus

the different versions of a gene for a specific trait (examples: blond, black, red, or brown hair)

• RNA

• phenotype

• genotype

• allele

the study of how traits are inherited through the actions of genes

• genealogy

• genetics

• biology

• geology

the trait or gene that covers other traits or genes

• recessive

• genetics

• dominant

• codominant