Explain how a change in a sequence of DNA bases could result in a non-functional enzyme

A mutation in the DNA sequence may lead to a different amino acid sequence may lead to a different amino acid being produced in the primary protein structure of the enzyme during translation. This may cause errors in protein folding - causing the protein to form different three-dimensional tertiary structure. If this occurs in the active site of the enzyme, successful enzyme-substrate complexes may no longer be able to form

YA

Related Biology A Level answers

All answers ▸

Explain the role of the pancreas in controlling blood glucose levels when they are too high.


Describe the changes in the lungs during inspiration


Enzymes known as endopeptidases aid digestion of proteins in the small intestine. why do they only bind to amino acids and not other foods ingested?


Explain how the structure of an egg cell is related to its function.