Genetics Vocab

Front

Homozygous

Back

Having two of the same alleles for a trait (e.g., TT or tt).

Tags

NGSS.HS-LS3-2

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Trait

Back

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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Phenotype

Back

The physical characteristic of a trait (e.g., a tall pea plant).

Tags

NGSS.HS-LS4-4

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Recessive

Back

An allele's inability to mask the dominant form, represented by a lowercase letter.

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Allele

Back

The different forms of a gene (e.g., yellow vs. green seeds).

Tags

NGSS.HS-LS3-2

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Genotype

Back

The genetic makeup of an organism, representing the alleles it possesses.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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Dominant

Back

An allele that can mask the effect of a recessive allele, represented by an uppercase letter.

Front

Heterozygous

Back

Having two different alleles for a trait (e.g., Tt).

Front

Punnett Square

Back

A diagram used to predict the outcome of a genetic cross.

Front

Gene

Back

A segment of DNA that codes for a specific trait.

Tags

NGSS.HS-LS3-1