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How to approach an essay question?

For the purpose of my explanation, I will use this sample essay question taken from the OCR F663 June 2013 paper: "Gloucester is no less than a tragic figure than his king" By considering the role ...
JL
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The points P (2,3.6) and Q(2.2,2.4) lie on the curve y=f(x) . Use P and Q to estimate the gradient of the curve at the point where x=2 .

To answer this question you will need to recall the formula for the gradient of a straight line. Cordinates are written in the form (x ​1,x 2 ​) and (y 1, ​y 2 ​). The formula takes into consideratoon the co...
AY
Answered by Abdulmuminu Y. • Maths tutor
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Why are organisms within a species genetically different?

1) Crossing over - in Prophase I of meiosis, non-sister chromatids in the same bivalent (i.e. chromatids on separate chromosomes within a homologous pair) can exchange alleles, creating new combinations. 2) ...
KF
Answered by Katherine F. • Biology tutor
4756 Views

What is transcription?

Transcription is the formation of an mRNA molecule from its complementary DNA template. First the enzyme DNA helicase unwinds the double helix, and the hydrogen bonds between complementary bases break. This ...
KF
Answered by Katherine F. • Biology tutor
11014 Views

What evidence is there to support the delocalised model of benzene over Kekulé's model?

Bond lengths - a single bond is 0.153nm while a double bond is 0.134nm, making Kekulé's model of alternating single and double bonds asymmetric. Other evidence shows benzene to be symmetrical so it cannot ha...
KF
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