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Name 3 requirements needed for DNA replication to occur

Any 3 below You will need a orginal DNA template - this is used for the DNA polymerase to copy the DNA. DNA is a double stranded helix and each strand can be used as a template for replication free DNA nucle...
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Answered by Rebecca B. • Biology tutor
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Describe the Structure of a DNA molecule

A DNA molecule is double stranded and arranged in a helical structure. The two strands are made up of a sugar phosphate 'backbone' where the sugar is attached to a base and a phosphate group, the sugar is de...
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Answered by Adam O. • Biology tutor
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To what extent was US foreign policy the cause of the Cuban Missile Crisis?

To a large extent these economic policies caused the crisis. However other factors played a part. These include the need to establish nuclear parity (equality), and the pressure under which leader found hims...
Answered by • History tutor
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Choose a play which explores the theme of love. By referring to appropriate techniques, show how this theme is communicated to the audience.

In his play Much Ado About Nothing, Shakespeare explores the theme of true love through a range of techniques. One of the most effective of these is the use of contrasting relationships. Shakespeare shows th...
Answered by • English tutor
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How do vaccinations work and what is their role in herd immunity?

Vaccinations are given to provide immunity and protection against a certain disease or pathogen. The vaccine itself contains a weakened 'version' of the pathogen that retains its antigens but not its ability...
Answered by • Human Biology tutor
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