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Describe and explain the process by which proteins are created from DNA

Firstly, the relevant DNA has to be unwrapped, because it is stored in a very tightly wrapped-up form to save space in the cell. The Hydrogen bonds between the two strands are broken, and the coding strand i...
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Answered by Charlie S. Biology tutor
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What is Newton's first law of motion?

Newton's first law of motion states 'an object will only experience acceleration if a resultant force is acting on it'. This means that only unbalanced forces will cause a change in the speed of the object. ...
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Answered by Daniel L. Physics tutor
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Explain why the product of a nucleophilic addition to butanone does not effect plane polarized light.

The nucleophile will attack the d + carbon atom of the carbonyl group. Since the carbonyl group is planar, attack can occur from either side with equal probability. The product of this reaction will contain ...
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Answered by Philip W. Chemistry tutor
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Frank owns an ice cream van. When he bought the van five years ago and an ice cream cost £1.50. If the price of an ice cream increases by 3% a year how much does an ice cream cost now?

new amount = old amount * (1 + interest)^(number of times interest has occured) new amount = 1.50 * (1 + 0.03)^5 = £1.74 (rounded to 2 decimal places)
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Answered by Thomas N. Maths tutor
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Differentiate y = x^3 + 2x^2 + 4x + 7

To differentiate you bring the power down and multiply it by any coefficients (numbers in front of the xs) then subtract one from the power So x 3 becomes 3x 2 2x 2 becomes 2*2x 2-1 = 4x 4x becomes 4*1x 1-1 ...
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Answered by Courtney S. Maths tutor
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