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Consider the importance of age of US voters as a factor influencing voting behaviour

Age is a primacy social factor that influences how a voter casts their vote. One way age is a factor is that there is a trend showing that younger voters are more likely to vote Democrat and older voters ...

Answered by Joanna C. • Politics tutor

6985 Views

What are three differences between DNA and RNA? ( 3 marks)

RNA is single stranded whereas DNA is double stranded - RNA has the bases A,G,C and U whereas DNA has the bases A,G,C and T - An RNA nucleotide has ribose as its sugar component whereas a DNA nucleo...

Answered by Prahalad N. • Biology tutor

3072 Views

It has been suggested that smoking, an epigenetic factor can lead to tumour growth and cancer. Use your knowledge of the epigenome and its structure to explain how this could occur. [5 marks]

Marking Scheme: MP1: Define epigenome- layers of chemical tags covering the DNA and histone protein complex MP2: Increased Methylation of DNA molecule MP...

Answered by Hannah H. • Biology tutor

2872 Views

The Haber-Bosch process is used in industry to produce ammonia. Explain how the use of high temperature and pressure affects the rate of reaction.

According to collision theory: Increasing the temperature increases the average energy of the system. This means more molecules have enough energy to overcome the activation enthalpy when they collide, ca...

Answered by Adam W. • Chemistry tutor

4696 Views

Why are there both earthquakes and volcanoes at convergent plate boundaries?

Convergent plate boundaries, also known as destructive plate boundaries, occur when 2 plate boundaries move towards one another due to convection currents in the mantle. The oceanic crust is subducted (fo...

Answered by Alice H. • Geography tutor

3209 Views