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A particular human disease is caused by a change in one codon in a gene from GAA to GUA. This disease is a result of

1. a substitution mutation
2. crossing over
3. nondisjunction
4. a virus

2 Answers

6 votes
1) a substitution mutation
User Basia
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10 votes

da ans z a substitution mutation

User ChiragBhalgami
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