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Biology
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What are the four bases found in DNA and how do they bond.

There are four DNA bases, Adenine (A), Cytosine (C), Guanine (G) and Thymine (T).
On each strand of DNA, the DNA bases are connected by phosphodiester bonds, to form a long chain.
These long D...

TJ
Answered by Toby J. • Biology tutor
14883 Views

Describe how the sperm cell is adapted to its function.

The sperm cell is adapted to its function in multiple ways:It has a tail which enables it to swim towards the egg.The middle section of the cell is packed with mitochondria. This allows it to release the ...

HH
Answered by Huw H. • Biology tutor
26649 Views

How do I get full marks for this question "Describe how a vaccination leads to antibody production" ?

Mark 1: What is a vaccine?A vaccine contains antigens from an inactive form of a specific pathogen.
Mark 2: Which cells are first to respond to the antigen?Anti...

CT
Answered by Chloe T. • Biology tutor
2424 Views

A patient is infected by a pathogen. Explain the process of the imitation of the immune response (5 marks) The paitent was prescribed antibiotics yet their symptoms did not improve. What can you infer from this? (1 mark)?

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