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Tutor profile: Katherine B.

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Katherine B.
Researcher in Human Genetics
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Questions

Subject: Health and Medicine

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Question:

What is the genetic cause of cystic fibrosis?

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Katherine B.
Answer:

Cystic fibrosis is caused by a homozygous (two copies - one on either chromosome) variant in the CTFR gene. This reduces the functionality of the CTFR protein which leads to thickened mucus in the lungs, and hence cystic fibrosis.

Subject: Biochemistry

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Question:

What is DNA made from?

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Katherine B.
Answer:

DNA consists of four nucleotide bases; adenine, guanine, tyrosine and cytosine. These four nucleotide bases are arranged in order with a sugar phosphate backbone to create the iconic DNA helix structure. This structure was discovered by famous scientists Watson and Crick.

Subject: Biology

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Question:

What is a gene?

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Katherine B.
Answer:

A gene is a small part of your genome which contains a list of instructions for making a protein

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