Top answers

Biology
A Level

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
4203 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 str...

PP
Answered by Parthik P. Biology tutor
43108 Views

What are the different stages of Mitosis?

Mitosis occurs in a continuous, sequential order and has 5 stages:
1) Prophase
2) Metaphase
3) Anaphase
4) Telophase. 
Interphase
Interphase occurs before Mi...

EC
Answered by Ellen C. Biology tutor
17369 Views

What is the function of the myelin sheath?

Neurones can either be myelinated - they are sorrounded by a myelin sheath, or unmyelinated - they are not surrounded by a myelin sheath.
The myelin sheath is made up of Schwann cells and there are g...

CR
Answered by Chloe R. Biology tutor
81409 Views

What is the role of ATP in a cell?

Adenosine triphosphate (ATP) is a small molecule that acts as a coenzyme within a cell.
The main role of ATP is to provide energy. Below are the ways it provides energy which can described in an exam...

CR
Answered by Chloe R. Biology tutor
58356 Views

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