Genotype
allelic composition of an organism
Phenotype
physical appearance of a trait
Homozygote
homologues carry copies of same allele for the same gene
Heterozygote
homologues carry different alleles for the same gene
Dominant
allele or phenotype expressed in the heterozygous or homozygous state
Recessive
allele or phenotype expressed only in homozygous state
Mendel’s 1st Law of segregation
Mendel’s 1st Law of segregation