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Transcription is the first step of protein synthesis and occurs within the nucleus of the cell. Within the cell's nucleus is the DNA. Firstly an enzyme called DNA Helicase 'unzips' the two DNA strands separa...

Assume we have the function: y = x ( x 2 + 8x - 9) This function is known as a cubic function as when multiplying out the brackets, the highest function of x would be x 3 .Note: If the highest order of x was...

Nailing the balance between description and analysis is the key to constructing an A* worthy piece of art historical writing. Though too much description can make your writing dull, a lack of descriptive exp...

This would be an essay questions so you would need three factors explaining why relations grew worse between USA and SU in 1943-47. The different factors you could talk about would be the Tehran Conference, ...

DIAGRAM At rest, there is a potential difference across the cell surface membrane of -60mV maintained by sodium-potassium ion pumps which pump 3 Na+ ions out of the cell for every 2 K+ ions pumped in. When a...