Biology A-Level
unchanged primary structure
What unchanged primary structure means in Biology A-Level, as defined for AQA.
Definition of unchanged primary structure
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Reference: AQA
The amino acid sequence stays the same because the substituted base still produces a codon specifying the same amino acid.
Topics that use unchanged primary structure
Related terms
- alleles
- chemical mutagens
- chromosome content diagrams
- crossing over
- degenerate code
- frameshift
- genetic variation
- independent segregation
Using unchanged primary structure in the exam
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