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Explain how polymerase chain reaction is used in DNA fingerprinting

DNA extracted from a crime scene is normally available in small quantities so PCR can be used to amplify this quantity to a reasonable concentration which can then be used to run a gel electrophoresis to ...

NS
Answered by Nikita S. Biology tutor
13799 Views

Explain how one study demonstrates localization of function in the brain.

The brain is seen as the command centre of human activity and therefore, psychologists aim to develop a deeper understanding of its role and how it matures, develops and adapts over lifetime. Prior to the...

C(
7896 Views

How do I expand (2x+5)(9x-2)?

First, remember that a set of closed brackets directly beside a single term/another set indicates that they are being multiplied. The key to expansions like this is to do it a particular order every time ...

ME
Answered by Meron E. Maths tutor
3103 Views

Explain how at least 2 literary pieces have portrayed a social group in a particular way. How might the contexts of these authors have influenced the portrayals of these groups?

(I will not write an entire answer as this is expected to be in essay form therefore I wouldn't be able to cover all of the response required)Introduction:Establish the texts being used and in particular ...

NS
2980 Views

How does vaccination prevent illness?

When a person is vaccinated, a small amount of dead or inactive pathogen (that they are being vaccinated against) is introduced into their body. This stimulates the white blood cells to produce antibodies...

FT
Answered by Freya T. Biology tutor
2349 Views

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