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How does a mutation lead to a non-functional enzyme?

Chanege in base sequence= change in sequence of triplet codes= change in sequence of amino acids= change in primary structure= change in hydrogen/ionic/disulfide bonds= change in tertiary structure= change i...
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Answered by Samatar O. • Biology tutor
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Question on tenses, continued in further depth for A level

When reading literary texts, you may also come across a tense called le passe simple. Like the perfect tense, the past historic refers to an action of any duration completed in the past (as opposed to the im...
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Answered by Antoinette C. • French tutor
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What is the difference between Act and Rule Utilitarianism?

A Rule Utilitarian will think about the consequences of an action and if its positive will apply the same rule each time in the future. Whereas, an Act Utilitarian will weigh up the outcomes of each decision...
GW
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What is the opportunity cost of a good?

The quantity of other goods sacrificed to get another unit of that good.
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Answered by George W. • Economics tutor
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Are there any costs as well as benefits to globalisation

Benefits: > Increased real national income and hence standard of living > Increase in the size of markets allowing MNC's to exploit and take advantage of economies of scale > Allowing domestic marke...
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Answered by Naim M. • Economics tutor
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