Top answers

How does base deletion in the DNA code produce a nonfunctional protein?

Base deletion leads to a frame shift error as the DNA code is read in triplet codons and is non overlapping. This leads to different amino acids being translated and a different primary structure. This leads...
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Answered by Haider A. • Biology tutor
5829 Views

By what process do proteins leave a cell?

Exocytosis. Vesicles transport proteins from the Golgi apparatus to the plasma membrane
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Answered by Robert H. • Biology tutor
3119 Views

What are enzymes and how do they work?

Enzymes are what are called 'biological catalysts;' that means they speed up how fast a reaction takes but they are unchanged by the reaction themselves. They work by lowering the activation energy needed fo...
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Answered by Tom D. • Biology tutor
2880 Views

How is a nervous impulse transmitted across a synapse?

An action potential (AP) reaches the pre-synaptic membrane. This causes the voltage-gated calcium channels to open, and calcium ions flow down their concentration gradient into the pre-synaptic terminal. Thi...
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Answered by Teodora N. • Biology tutor
2687 Views

Describe prions and their function, give example of prion disease

Prions are certain proteins naturally occuring in organisms that have assumed wrong conformation during folding. This misfolded structure is highly infectious - if it comes into contact with healthy version ...
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Answered by Klára N. • Biology tutor
5903 Views