Genetics vocabulary

What is the branch of biology that studies heredity?

• Phenotype

• Molecular genetics

• Cross-pollination

• Genotype

What is the passing of traits from parents to offspring called?

• Test cross

• Self-pollination

• Punnett square

• Heredity

What is the physical appearance of an organism called?

• Probability

• Genotype

• Dihybrid cross

• Trait

What is the fraction of genotypes that appear in offspring called?

• Phenotypic ratio

• Genotypic ratio

• Incomplete dominance

• Codominance

What is the diagram that predicts the outcomes of a genetic cross called?

• Molecular genetics

• Pollination

• Punnett square

• Cross-pollination

What is the likelihood that a specific event will occur called?

• Complete dominance

• Heterozygous

• Probability

• Homozygous

What is the fraction of phenotypes that appear in offspring called?

• Phenotypic ratio

• Genotypic ratio

• Recessive

• Dominant

What is the study of the structure and function of chromosomes and genes called?

• Molecular genetics

• Law of independent assortment

• Law of segregation

• Trait

What is the cross of a homozygous recessive individual with an individual with a dominant phenotype of unknown genotype called?

• Test cross

• Heterozygous

• Homozygous

• Incomplete dominance

What is the occurrence between flowers of two different plants called?

• Phenotype

• Genotype

• Cross-pollination

• Self-pollination