hereditary lab

character/trait

a feature of an organism influenced by its genes

heterozygous

two alleles controlling a trait are different (Aa)

homozygous

two alleles controlling a trait are the same (AA or aa)

dominant allele

an allele that can mask the effects of a recessive allele (A)

recessive allele

an allele that can be masked by the effects of a dominant allele (a)

genotype

certain combo of alleles/genetic makeup (AA, Aa, aa)

phenotype

expression of genotype in the body (homozygous dominant for AA, heterozygous for Aa, homozygous recessive for aa)

gene

genetic coding

allele

different versions of genes

punnett square

square diagram used to predict genotypes

sex chromosomes

determine genetic sex, which guides the expression of other traits

autosomes

any chromosome that isn’t a sex chromosome

blood type genetic codes

I^A for A, I^B for B, I^O for O

type A blood possible genotypes

I^AI^A or I^AI^O

type B blood possible genotypes

I^BI^B or I^BI^O

type AB blood possible genotypes

I^AI^B

type O blood possible genotypes

I^OI^O