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A-Level Biology OCR A

Structure Mutations Alter Changed Outline Protein Occurs Randomly

This flashcard explains how mutations, by altering the DNA base sequence, can lead to the coding of incorrect amino acids, which in turn changes the protein's primary and tertiary structures, potentially resulting in a loss of function.

Mutations change base sequence, potentially coding for the wrong amino acid, altering primary and tertiary structure, and thus function.

Front Outline how mutations can alter the structure of a protein.
Back How mutations alter proteins:
  • A mutation occurs randomly in a gene, base sequence is changed so that the wrong amino acid is coded for in the protein
  • This means the primary structure is changed so the tertiary structure is altered and the function may be lost

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