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A listening exam is daunting. There is not a lot of time to analyse an extract, so you need to find the quickest and most efficient way to gain marks. There are many different ways to approach an extra...

To answer this question, it is first important to understand the meaning of the word degenerate.

So being an A level Biology student, you must know that genes code...

Recall: We treat inequality in a similar manner to the equal sign.

The steps are:

1. Collect like terms

2. Simplify

3x – 7 > 3 ...

DNA is wrapped around proteins called histones, to form nucleosomes. Each nucleosome is a histone octomer composed of (H2A, H2B, H3, and H4) subunits with a 1.65 helical turn of 147 nucleotide bases. N...

What are the maxima and minima?
The maxima of a function f(x) are all the points on the graph of the function which are 'local maximums'.

A point where x=a is a local max...