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How does a deletion of a base in the DNA base sequence lead to a mutated protein?

It is important to note that bases on the DNA (and mRNA) are read in separate sets of 3s along a DNA/(mRNA) stand (this is called a triplet code in DNA, or the codon in mRNA). So, if a base is deleted, the w...
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Answered by Febi S. • Biology tutor
17675 Views

How do I use the product rule for differentiation?

The product rule is a rule for differentiating products of expressions, i.e. 2 expressions multiplied together. The rule is: if y=A B, then dy/dx=A dB/dx +B*dA/dx. This can be remembered as "Write down ...
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Answered by Thomas E. • Maths tutor
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How do I approach an essay question?

The layout of your essay is crucial. Make sure your ideas are clear and explicit - your teacher shouldn't have to decode what you mean! Use correct grammar and make your vocabulary interesting, using words s...
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Answered by Caitlin B. • History tutor
6681 Views

What is Standard form? And when can I use it?

Standard form, also referred to as standard index form is a method of writing really big and really small numbers. It uses powers of 10 to express its size.Standard form is used all the time in science and e...
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Answered by Ceri L. • Maths tutor
27263 Views

The number of uniform spherical shots that can be made from a given mass of lead varies inversely to the cube of the radius. When the radius is 1mm the number of shots made is 2744. How many shots of radius 1.4mm can be made from the same mass.

The key to long questions like these is picking out the key information quickly. We have 2 pieces of information we are interested in, the number of shots and the radius of each shot, so let's assign them a ...
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Answered by Joshua J. • Maths tutor
4997 Views