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Explain the structure of a DNA polynucleotide strand

Think of DNA like 2 long shoelaces coiled around each other to form a spiral - or a double helix as it's called. Each of the 2 shoelaces is called a 'strand' and is made up of something called 'polynucleotid...
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Answered by Darius F. • Biology tutor
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How did Labour win the 1945 General Election?

We are now fairly used to the failings of polling in predicting the outcomes of elections and referendums, but the election of Labour under Clement Attlee was a very early example of a 'shock' victory. From ...
SC
Answered by Seb C. • History tutor
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A ball is initially at rest and is dropped from a height of 10m. Calculate the velocity of the ball when it reaches the ground

For this we need to use a SUVAT equation. S=displacement U=initial velocity V=final velocity A=acceleration T=time In the question we are give U=0m/s since the ball is at rest to start with Since the ball is...
CG
Answered by Catherine G. • Physics tutor
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I know how to integrate, but I still never see any real world example of it, so it is difficult to understand. Why is it useful?

(In tandem with the whiteboard) Integration is a way of working out the total of something. An example of this is if you see a graph of velocity and time, the area under the graph is the total distance trave...
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Answered by Cain M. • Maths tutor
3792 Views

Outline the workings of the regional party list electoral system.

The regional party list electoral system is used in the UK to elect MEP's to the European Parliament. The party list is an example of a proportional representation system that leads to regions having multipl...
AC
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