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Explain how a change in an allele can stop a protein functioning correctly. (4)

If there is a change in the allele, there will be a change in base sequence of DNA (1) This means there is a change in order of amino acids (1) Therefore the protein shape changes (1) Hence, the protein m...

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Answered by Lima H. Biology tutor
5947 Views

How many moles are in 50g of NaCl.

Using the formula mass=Mr * moles we can rearrange this so it equals moles= mass / Mr. We are told the mass of the NaCl is 50g however we need to work out the Mr (relative formula mass) of the NaCl too. W...

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Answered by Katy H. Chemistry tutor
24312 Views

Compare and contrast facilitated diffusion and osmosis.

Facilitated diffusion is the process whereby substances are move down a concentration gradient, from a region of high concentration to a region of low concentration, using a protein as a carrier or a chan...

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Answered by Sanjana C. Biology tutor
3354 Views

How is the conditional used in French?

To conjugate in the conditional, you use the same verb stem as the future and add the following endings: -ais ,-ais , -ait, -ions,-iez, -aientThe conditional in French is very similar to the English equiv...

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Answered by Victoria F. French tutor
1644 Views

Why were the overseas possessions of English kings significant in causing the Hundred Years’ War?

The first reason why English overseas possessions were significant in causing the Hundred Years' War is due to the legal status in which these possessions were held. Edward III, upon accession to the thro...

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Answered by Tristan G. History tutor
3208 Views

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