Genetics Vocabulary

An organism that has two identical alleles for a trait.

• homozygous

• heterozygous

• dominant

• recessive

A segment of DNA on a chromosome that codes for a specific trait.

• gene

• chromosome

• allele

• nucleotide

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NGSS.HS-LS3-1

Alternative forms of a gene for each variation of a trait of an organism.

• allele

• chromosome

• genotype

• phenotype

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NGSS.HS-LS3-2

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

• trait

• cell

• organ

• mutation

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An organism's genetic makeup.

• genotype

• phenotype

• allele

• chromosome

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NGSS.HS-LS3-1

Alleles come in pairs, one from each ________________.

• parent

• cell

• gene

• chromosome

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NGSS.HS-LS3-1

Mendel studies these.

• peas

• corn

• beans

• potatoes

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The passing of traits from parents to offspring.

• heredity

• mutation

• evolution

• photosynthesis

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NGSS.HS-LS3-1

A diagram for predicting the allele composition of offspring from a cross between individuals of known genetic makeup.

• Punnett square

• Karyotype

• Pedigree

• Gene map

Scientific study of heredity.

• genetics

• biology

• evolution

• ecology

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NGSS.HS-LS3-1

NGSS.HS-LS3-2