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How is the DNA prepared for it to be replicated?

The preparation occurs to the DNA whilst in the nucleus of the cell.

As DNA is a double helix, the two strands of DNA need to be split apart. Therefore the hydrogen bonds...

Answered by Sarah P. • Biology tutor

4078 Views

Explain what factors will influence a business' choice of supplier

Cost: The lower the cost to the business the cheaper each unit will be and this helps the business to increase their profit. However the drawback to this is that quality can be neglected as a result.

Answered by Thomas C. • Business Studies tutor

20078 Views

Passé composé: how does the agreement of the past participle work?

The passé composé (present perfect) is a frequently used tense to refer to a finished action, event, etc. in the near past. In spoken French, it often replaces the passé simple (past h...

Answered by Constance M. • French tutor

39184 Views

How can aldehydes and ketones be distinguished?

Firstly note that in general aldehydes are more reactive than ketones. This is a result of two effects:

1. Ketones are more sterically hindered.

2. Alkyl groups are electro...

Answered by George B. • Chemistry tutor

63231 Views

How do mass spectrometers work?

A mass spectrometer is a piece of lab equipment used to measure the relative atomic masses of atoms and molecules. It is widely used to identify substances in the lab.

The process is ofte...

Answered by George B. • Chemistry tutor

4269 Views