Top answers

Why are some DNA mutations sometimes not dangerous, and which type of mutations are these likely to be?

The DNA code is degenerate, which means that a single amino acid can be coded for by more than one sequence of three bases. Some mutations, including substitution, may result in the same amino acid being pro...
PO
Answered by Patrick O. • Biology tutor
2633 Views

I've done all the exercises my teachers have given me- how can I do more to revise for my A-level exam?

I find that revising for an A-Level language exam often takes you outside of the classroom and the resources of your teachers. Obviously it's important to do past exam questions, listening exercises, essay p...
ER
Answered by Emily R. • French tutor
1796 Views

Translate the following: If I had been listening to my sister, I would have understood why she was late.

This is a hypothetical, or si clause, specifically the third type: si + pluperfect + conditional perfect. If I had been listening to my sister - this is the pluperfect, a tense further in the past. It’s form...
AA
Answered by Adam A. • French tutor
1680 Views

How does the notion of the American Dream manifest through The Great Gatsby?

This is a fantastic question. Lots to get your teeth into. First of all - unpack the question. If you unpack the question you will know which way to take it. So what does the 'American Dream' really mean? An...
LH
Answered by Lizzie H. • English tutor
1764 Views

How can taxes reduce the effect of negative externalities?

Firstly, we know a negative externality is when the marginal social cost of a good or service is greater than the marginal private cost: in practice, this means that there are third parties (people who are n...
NK
10714 Views