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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 graph or...
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Answered by Amelia A. • Biology tutor
70980 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 which is ha...
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Answered by Eloise C. • Biology tutor
4724 Views

What do I do with the Hardy-Weinberg equation?

p 2 + 2 pq + q 2 = 1 It looks daunting at first but once you get the hang of them they can be easy marks in the exam. p is the frequency of the dominant allele in the population, and q is the frequency of th...
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Answered by Atalie S. • Biology tutor
7926 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-C, A-...
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Answered by Atalie S. • Biology tutor
4936 Views

Describe how the structure of an antibody is related to its function?

1) They contain a variable region also called the Fab region, allowing the attachment of an antigen to the antibody 2) They contain 2 light chains and 2 heavy chains allowing a sturdy structure, also allowin...
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Answered by Parthik P. • Biology tutor
44089 Views