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Biology
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compare and contrast transcription and translation

compareboth involve nucleotide basesboth involve RNAcontrasttranscription copies DNAtranscription produces mRNAtranslation produces a polypeptidetranslation uses tRNA molecules

CE
Answered by Cameron E. Biology tutor
2172 Views

Describe and explain the role of positive feedback in an action potential

Describe:·     Random or small amount of sodium ions enter the axon (diffusion) which leads to a slight depolarisation of the membrane·     Down the concentration gradient (more sodium outside the cell th...

AH
Answered by Ayesha H. Biology tutor
10856 Views

Helicobacter pylori can cause stomach cancer. Describe how a person infected with Helicobacter pylori could also develop liver cancer.

Cancer is caused by the uncontrolled division of cells. If a cancer is benign, it will be a certain size and stay that size. However if it is malignant, then it will grow and get bigger in size. Eventuall...

AS
Answered by Adam S. Biology tutor
14594 Views

What's your best piece of advice for an Oxbridge interview?

Personally, going into the interview process, one of my biggest fears was not knowing the answer to a question and lapsing into silence. The best piece of advice I received before going into interviews wa...

SB
Answered by Sarah B. Biology tutor
2426 Views

How does the body respond following a meal to ensure a relatively constant blood sugar level?

After a meal blood sugar levels will rise. In the Islets of Langerhans beta cells detect hyperglycaemia and secrete insulin, while alpha cells stop releasing glucagon.
The insulin moves in the blood...

CJ
Answered by Cameron J. Biology tutor
2454 Views

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