Basic Genetics Vocabulary

Match the following

• Trait

• The study of how traits are passed on

• Allele

• Different forms of a trait that a gene may have

• Passing of traits from parent to offspring

• An inherited characteristic of an organism

• Genetics

• Heredity

• The segment or part of DNA that determines a particular trait

• Gene

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Dominant alleles mask, or cover up

• genes.

• recessive alleles.

• homozyogous recessive alleles.

• phenotypes.

Genetic makeup is called

• heredity.

• genetics.

• genotype.

• traits.

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How an organism looks or acts is its

• phenotype.

• genotype.

• heredity.

• alleles.

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A genotype with the same allele is called

• heterozygous.

• homozygous.

• genes.

• heredity.

A genotype with two different alleles is

• traits.

• genes.

• homozygous.

• heterozygous.

TT is an example of this type of genotype.

• heterozygous

• homozygous

• homozygous recessive

• homozygous dominant

A genotype of tt is

• heterozygous.

• homozygous recessive.

• homozygous dominant.

• traits.

Scientists use these to determine the probability of inherited genotypes.

• Mr. Magoo's Insights

• Donkey's Ideas

• Pythagorean Theorem

• Punnett squares

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Scientists use this tool to determine the expected percentage (ratio) of different genotypes in the offspring of two parents.

• line graph

• bar graph

• Punnett square

• pictograph