Vocabulary Set 9

Genetic makeup of an organism 

• genotype

• heredity

• phenotype

• allele

Physical traits of an organism  

• genetics

• genotype

• phenotype

• allele

Organisms that have two identical alleles for a particular gene

• recessive

• homozygous

• dominant

• heterozygous

Organisms that have two different alleles for the same gene 

• recessive

• heterozygous

• dominant

• homozygous

The different forms of a single gene 

• allele

• gene

• dominant

• recessive

Factors that are passed from one parental generation to the next 

• dominant

• recessive

• homozygous

• gene

Alleles that are always expressed when they are in the genotype

• allele

• dominant

• recessive

• gene

Alleles that are only expressed when there are two copies in the genotype

• recessive

• allele

• dominant

• homozygous

Punnett square that determines probability of a single trait 

• gene

• monohybrid

• dihybrid

• trait

Punnett square that determines probability of inheriting two traits 

• monohybrid

• homozygous

• dihybrid

• heterozygous