Genetics Chapter Vocabulary

The scientific study of heredity.

• chemistry
• biology
• physics
• genetics

a new organism begins to form when egg and sperm cells join

• Incubation
• Conception
• Fertilization
• Germination

A specific characteristic that an organism can pass to its offspring through genes.

• Mutation
• Trait
• Genealogy
• Inheritance

the offspring of many generations that have the same form of a trait.

• purebred

• Genotype
• Phenotype
• Heterozygous

factors that control a trait

• gene

• allele

• trait

• genetics

the different forms of a gene

• Phenotypes
• Alleles
• Genotypes
• Chromosomes

trait always shows up in the organism when the allele is present.

• Recessive allele
• Dominant allele
• Homozygous allele
• Incomplete allele

hidden whenever the dominant allele is present.

• recessive allele

• present
• allele
• dominant allele

organism with two different alleles for a trait

• hybrid

• monohybrid
• punnett square

• purebred

a number that describes how likely it is that an event will occur.

• Chance
• Likelihood
• Certainty
• Probability