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Why should different animals have different haemoglobin types

Some animals contain haemoglobin molecules which are structured in way which allows them to have a high affinity for oxygen whilst some are the complete reverse. The reason for this is all to do with the ...

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Answered by Benito W. Biology tutor
25942 Views

Why is the polymerase chain reaction important and how does it work?

The polymerase chain reaction (or PCR) is extremely useful at copying fragments of DNA so by the end of it you have a much bigger sample than what you started with. This is particularly useful for example...

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Answered by Benito W. Biology tutor
9478 Views

How can I write an exam answer on an unseen text that I really don’t understand?

Having to analyse an unseen passage or poem in an exam can be very daunting and it’s often tempting to panic when you first see what you’ve been given. The most important thing to do, however, is to stay ...

EL
16340 Views

How can I write an effective conclusion to a factor based question?

The conclusion is the last part of the essay that the examiner will read, and therefore you should try to explicitly link it back to the specific question. This will tell the examiner that you have und...

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Answered by Lucy W. History tutor
7176 Views

Outline the roles of synapses in the nervous system

Primarily, the function of synapses is allow communication between nerones in the nervous system.

Additionally, the structure of synapses means that they can perform further functions. Sp...

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Answered by Lucy W. Biology tutor
43872 Views

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