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What is the difference between gene transcription and gene translation?

Both of these are key steps in gene expression to obtain proteins. Transcription occurs first. It is the process, happening in the nucleus, where a specific segment of DNA is copied into RNA to form messenge...
MG
Answered by Madeleine G. • Biology tutor
7872 Views

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?

Model Answer: this is because enzymes are a protein with a specific tertiary structure which have an active site that is complementary to the substrate (in this case the amino acids of a protein) ultimately ...
CB
Answered by Charlotte B. • Biology tutor
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Which of these DNA mutations is likely to have the greatest effect on the structure of the encoded protein? Justify your answer. •Single base substitution •15 bases base deletion •Insertion of 2 bases

The most serious of these mutations will be the insertion of 2 bases. Becasue the genetic code is read in triplets, a 2 base insetion will alter the reading frame of the code causing a frameshift mutation me...
EM
Answered by Emma M. • Biology tutor
23353 Views

Describe the mechanism(s) as to which an enzyme binds to a substrate.

Two models have been proposed. The first being the 'Lock and Key Model' which simply describes the way in which the active site of an enzyme is complementary to the substrate shape, meaning that only the cor...
NB
Answered by Nicole B. • Biology tutor
3647 Views

Explain the processes that lead to the contraction of a single muscle

A nervous impulse travels to the neuromuscular junction and causes the release of acetylcholine into the synaptic cleft. Depolarisation of the motor end plate spreads through the muscle via transverse tubule...
PB
Answered by Prashan B. • Biology tutor
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