SB3e Genetic Variants And Phenotypes Flashcards Preview

GCSE Biology > SB3e Genetic Variants And Phenotypes > Flashcards

Flashcards in SB3e Genetic Variants And Phenotypes Deck (4)
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1
Q

Allele

A

Most genes come in different versions called alleles. So a gene for eye colour may have one version (allele) that can cause dark eyes, and another allele that can cause pale eyes.

2
Q

Genetic disorder

A

A problem caused by genes.

3
Q

Mutation

A

A change to a gene caused by a mistake in copying the DNA base pairs during cell division, or by the effects of radiation or of certain chemicals.

4
Q

Phenotype

A

The characteristics that a certain set of alleles display.

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