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Explain how changing one base in a DNA sequence may result in a non-functional protein being produced.

Changing one DNA base will alter one triplet in the DNA code. As each triplet codes for an amino acid this may result in a change to the primary structure of the protein produced. If the changed amino acid w...
EC
Answered by Emily C. • Biology tutor
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Describe the structure of proteins

Proteins have a primary, secondary, tertiary and quaternary structure. The primary structure comprises of the specific sequence of amino acids which are held together by peptide bonds. The secondary structur...
TT
Answered by Taran T. • Biology tutor
3551 Views

Why would the simple diffusion of chloride ions across a cell membrane be extremely slow?

There are differnet ways that substances can move across a cell surface; simple diffusion, facilitated diffusion, osmosis or active transport. Most substances can move across the cell membrane via simple dif...
JB
Answered by Jess B. • Biology tutor
42015 Views

Explain the effect succession has on biodiversity

Succession initiates in regions where there are very harsh conditions and so no organisms are able to survive (therefore little biodiveristy); -a pioneer species with good adaptaions are able to survive and ...
DM
Answered by Denya M. • Biology tutor
9657 Views

Describe and explain the process by which proteins are created from DNA

Firstly, the relevant DNA has to be unwrapped, because it is stored in a very tightly wrapped-up form to save space in the cell. The Hydrogen bonds between the two strands are broken, and the coding strand i...
CS
Answered by Charlie S. • Biology tutor
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