MYTUTOR SUBJECT ANSWERS

422 views

What is a genetic mutation?

A mutation is a random change in the amount of DNA or sequence of DNA nucleotides within a cell. DNA is a double helix with two polynucleotide strands joined by hydrogen bonds between complementary base pairs. This structure is usually very stable, but mutations can randomly occur during DNA replication and also in the presence of mutagens (e.g. ionising radiation). Genetic mutations involve insertions, deletions, substitutions, inversions, changes in the number of repeat units, deamination (e.g. cytosine can be deaminated to form uracil) or depurination (resulting in the conversion of a nucleotide into a sugar-phosphate residue). 

Krupa R. GCSE Biology tutor, A Level Biology tutor, GCSE Chemistry tu...

10 months ago

Answered by Krupa, an A Level Biology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

168 SUBJECT SPECIALISTS

£20 /hr

Katie D.

Degree: Biomedical Science (Bachelors) - Durham University

Subjects offered:Biology

Biology

“Hello, I am just a genuine, patient, friendly person who wants to help other struggling students to understand, enjoy and hopefully succeed in biology.”

£24 /hr

Pooja D.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered:Biology, Science+ 6 more

Biology
Science
Physics
Maths
Chemistry
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“I have tutored for the past 4 years and have gathered many ways of teaching concepts to students in a way that is easily-digestible and understandable. ”

Nehemie M. A Level Biology tutor, GCSE Biology tutor, IB French tutor...
£20 /hr

Nehemie M.

Degree: Biochemistry with a Professional Placement (Bachelors) - Bath University

Subjects offered:Biology, French

Biology
French

“I am university student passionate about Biology and Chemistry who also speaks French!!!”

About the author

Krupa R.

Currently unavailable: until 10/05/2017

Degree: Medicine (Bachelors) - Oxford, Lincoln College University

Subjects offered:Biology, Maths+ 3 more

Biology
Maths
Chemistry
-Personal Statements-
-Medical School Preparation-

“Hi, I'm Krupa - a medical student at Lincoln College, Oxford. I want to be a tutor because I really enjoy teaching and I'm passionate about studying Science  and am keen to share this interest with others.  However, I understand that s...”

MyTutor guarantee

You may also like...

Posts by Krupa

How much scientific interest should I demonstrate in a Medicine personal statement?

What are the different types of isomers?

What is a genetic mutation?

Other A Level Biology questions

What is cross bridge cycling and why is it important in muscle contraction?

The enzyme maltase breaks down maltose to glucose. This takes place at body temperature. Explain why maltase: 1) only breaks down maltose 2) allows this reaction to take place at normal body temperature

Explain the difference in the speed of conduction of an action potential along the length of a myelinated neurone and a non-myelinated neurone.

How are Genes and DNA organised?

View A Level Biology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok