Genetics Vocabulary

the science that studies how traits are inherited through the interactions of alleles

• heredity

• genetics

• biology

the passing of traits from parent to offsprint

• heredity

• genetics

• botany

the genetic make-up; the actual gene pair

• genotype

• phenotype

the physical or visible appearance of an organism; a trait we can see

• genotype

• phenotype

blue eyes, curly hair

• genotype

• phenotype

Tt, BB, rr

• genotype

• phenotype

controls the trait; you only need one gene for the trait to show up in an organism

• dominant

• recessive

the weaker trait; you need 2 genes for the trait to show up in an organism

• dominant

• recessive

purebred; the same gene pair

• homozygous

• heterozygous

the different forms of a trait that make up a gene, R OR r

• allele

• dominant

• recessive