Top answers

Biology
A Level

What are the most important topics that I should revise?

Below is a list (by no means exhaustive!) of topics you are sure to encounter in A-level biology and are frequently big features in exam papers.

If you are a GCSE student soon to be start...

AA
Answered by Amelia A. Biology tutor
13882 Views

How do I answer a 'Describe and Explain' question?

Failing to distinguish between these two important command words can result in a lot of lost marks! ‘Describe’ involves writing a literal description of the data that is in front of you, may it be a gr...

AA
Answered by Amelia A. Biology tutor
68067 Views

How do I identify the hormones when they are displayed on a graph of the mentsrual cycle?

It is important to look at the shape of each line.  Regardless of the species, the line with the largest, solitary spike is LH (luteinising hormone) and this occurs just before ovulation.  The line whi...

EC
Answered by Eloise C. Biology tutor
4362 Views

What do I do with the Hardy-Weinberg equation?

p2+ 2pq q2= 1 

 

It looks daunting at first but once you get the hang of them they can be easy marks in the exam....

AS
Answered by Atalie S. Biology tutor
6130 Views

How is RNA different to DNA?

There are a few key points you should remember. RNA has a ribose sugar instead of a deoxyribose sugar, RNA also has uracil instead of thymine, so uracil binds to adenine. The base pairings in RNA are G...

AS
Answered by Atalie S. Biology tutor
4498 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning