What is alternative splicing

Splicing is a process where premRNA is transformed into mRNA.

It involves the removal of Introns ( gene sequences which do not code for proteins ) and the attachment of exons (sequences which code for proteins) together. 

Alternative splicing allows different exons to be joined differentially allowing a variety of possible proteins from a single gene.

PA

Related Biology A Level answers

All answers ▸

How is the process by which plants turn towards a light source called and what is the role of auxin (IAA) in it?


The black mamba’s toxin kills prey by preventing their breathing. It does this by inhibiting the enzyme acetylcholinesterase at neuromuscular junctions. Use your knowledge of muscle contraction to explain how this prevents breathing.


Two proteins have the same number and type of amino acids but different tertiary structures. Explain why.


How can high absorption of salt fro the diet leading to high salt concentration in local capillaries lead to build-up of tissue fluid?