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Gene mutations can arise during DNA replication. Explain why different types of gene mutation may have different effects on the encoded polypeptide.

Gene mutations arise due to errors in DNA replication and include insertion, deletion, substitution, inversion, duplication and translocation of bases. Each triplet of bases encodes one amino acid. Therefore...
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Answered by Harriet O. • Biology tutor
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The line AB has equation 5x + 3y + 3 = 0 . (a) The line AB is parallel to the line with equation y = mx + 7 . Find the value of m. [2 marks] (b) The line AB intersects the line with equation 3x -2y + 17 = 0 at the point B. Find the coordinates of B.

Rearrange line into standard form. y=5/3*x +1 For parallel lines the gradient is the same therefore m = 5/3 Point of intersection is where two lines equal eachother multiply out to elminate x term 15x + 9y +...
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Answered by Daniel H. • Maths tutor
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How do you form the present subjunctive?

To form the present subjunctive of you have to start with the third person plural of the verb, for example 'jouent'. Remove the -ent from the end and add the following endings: -e, -es, -e, -ions, -iez, -ent...
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Answered by Sebastian E. • French tutor
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How should I approach writing a comparative essay?

It is essential to first check the weighting of the assessment criteria to cater your essay to the dominant assessment objectives. For example, in OCR English A-Level, 50% of the marks are for " underst...
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Answered by Jonathan B. • English tutor
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Why was Germany so important to the US and USSR during the Cold War?

It was important for both practical, strategic reasons, as well as symbolic reasons. From a strategic point of view, Germany was located in central Europe and was the key to Western Europe. The USSR wanted t...
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Answered by Nadia A. • History tutor
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