Genetics Vocabulary

Study of heredity

• genetics

• genes

• family tree

• generations

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Passing of traits from parents to offspring

• genetics

• heredity

• genes

• generations

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A section of a chromosome that carries the information for a specific trait like hair color or eye color

• heredity

• generation

• gene

• allele

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Different forms of a gene like different eye colors

• traits

• genetics

• chromosomes

• alleles

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A genetic factor that blocks another genetic factor -- represented by a capital letter

• recessive trait

• dominant trait

• homozygous

• heterozygous

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A genetic factor blocked by another genetic factor -- represented by a lowercase letter

• recessive trait

• dominant trait

• homozygous

• heterozygous

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How a trait PHYSICALLY appears in an organism

• heterozygous

• homozygous

• phenotype

• genotype

How different combinations of alleles describe the GENETIC makeup of an organism

• genotype

• phenotype

• homozygous

• heterozygous

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If two identical alleles are inherited, then an organism is ___ for that trait.

• genotype

• phenotype

• homozygous

• heterozygous

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If two different alleles are inherited by an organism, then an organism is ___ for that trait.

• homozygous

• heterozygous

• genotype

• phenotype

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