Mutations and Pedigrees Vocabulary

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Last updated 1:03 AM on 4/20/26
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6 Terms

1
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Any change in the DNA sequence of a cell.

Mutation

2
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A physical or chemical agent (like UV rays or cigarette smoke) that increases the frequency of mutations.

Mutagen

3
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A type of mutation where a section of a chromosome is repeated.
Duplication
4
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A mutation where a piece of one chromosome breaks off and attaches to a different, non-homologous chromosome.
Translocation
5
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The failure of homologous chromosomes or sister chromatids to separate properly during cell division, leading to an abnormal number of chromosomes.
Nondisjunction
6
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A chart or "family tree" that tracks the occurrence of a trait through several generations of a family.
Pedigree