distinguishing characteristics of phenotypic features of an individual

having descended from ancestors of a distinct type or breed.

describes an individual with two alleles at one locus that are identical

the designation of the parent generation

allele that is not expressed in a heterozygous pairing

describes an individual with two different alleles at a locus

the first generation

in a heterozygous pairing the allele that is fully expressed in an organisms phenotype

genetic make-up of an organism

the second generation

a specific sequence of DNA that governs the expression of a particular trait and can be passed to an offspring

the physical and psychological make-up of an individual

a organism heterozygous for a trait

alternate form of a gene

Mendel's first law of inheritance that states when individual of contrasting traits are crossed the offspring will express only the dominant trait