2023 BP/AP Genetics Vocab NO PICS

inherited variation

differences that are caused by the genes inherited from parents

environmental variation

differences that are caused by lifestyle and environment

homozygous

two of the same genes, two dominant or two recessive

heterozygous

two different genes, one dominant one recessive

dominant gene

gene that hides a recessive gene

recessive gene

gene that is hidden by a dominant gene

genotype

letter pairs that represent the genes an organism carries

phenotype

physical trait an organism displays based on its genotype

punnett square

prediction of the possible genotypes of offspring based on the genotypes of parents

dominant symbol

upper case letter

recessive symbol

lowercase letter

pedigree

diagram showing traits passed from generation to generation

incomplete dominance

one allele is not completely dominant over another allele presenting as a blend of traits

complete dominance

one allele is completely dominant over another

allele

the different options for a trait