Genetics Vocabulary

An allele that is expressed over a recessive allele.

• Dominant

• Recessive

• Genotype

• Phenotype

An allele that is masked by the presence of a dominant allele.

• Dominant

• Recessive

• Genotype

• Phenotype

Capital letters represent ______________alleles.

• Dominant

• Recessive

• Phenotype

• Genotype

Lowercase letters represent ______________alleles.

• Dominant

• Recessive

• Phenotype

• Genotype

An organism with two different alleles, one dominant and one recessive (e.g., Aa).

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

An organism with two dominant alleles (e.g., AA).

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

An organism with two recessive alleles (e.g., aa).

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

The alleles BB represent

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

The alleles bb represent

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

The alleles Bb represent

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive