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What is a radian?

In short, a radian is an angular measurement , very much like a degree, except one radian is a lot bigger than one degree, and it has some special properties. A radian can often seem like an unnecessarily co...
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Answered by Jack M. • Maths tutor
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What is the role of mRNA in protein synthesis?

mRNA stands for messenger RNA. Essentially, once the strand of DNA is unwound and flattened, it is separated into its two strands. Then the bases on each DNA strand are read in groups of three. These are cal...
EC
Answered by Esthel C. • Biology tutor
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Why do foetuses have different haemoglobin to adults?

Normal adult haemoglobin is primarily comprised of 2 alpha and 2 beta subunits and foetal haemoglobin has 2 gamma subunits instead of the 2 betas. Now what this does is increase the binding affinity of this ...
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Answered by Max B. • Biology tutor
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How to be fully prepared for the exam?

practice practice practice
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Answered by Nazrin R. • Maths tutor
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The line AB has equation 5x + 3y + 3 = 0 and it intersects the line with equation 3x - 2y + 17 = 0 at the point B. Find the coordinates of B.

Two straight lines can intersect at only one point. To identify the point at which the lines cross, we make a simultaneous equation, and solve x and y from here, by firstly writing one equation on top of the...
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Answered by Jamie M. • Maths tutor
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