MYTUTOR SUBJECT ANSWERS

370 views

How does gel electrophoresis seperate DNA?

The DNA from PCR is placed into wells of agarose gel and a buffer solution is poured over it. An electrical current is passed through the gel due to the conduction of the buffer solution. The DNA fragments move towards the positive elctrode because they are negatively charged. Shorter DNA fragments travel further through the gel as they move faster, seperating the DNA by its length.

Holly D. GCSE Biology tutor, A Level Biology tutor, GCSE Chemistry tu...

8 months ago

Answered by Holly, an A Level Biology tutor with MyTutor


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

172 SUBJECT SPECIALISTS

£22 /hr

Naomi S.

Degree: Medicine (Bachelors) - Trinity College Dublin University

Subjects offered:Biology, Music+ 4 more

Biology
Music
Maths
Human Biology
Chemistry
-Medical School Preparation-

“*Available to teach exam revision sessions immediately.* I'm a medical student at Trinity College Dublin. ”

Holly R. A Level Biology tutor, GCSE Biology tutor, A Level Chemistry...
£20 /hr

Holly R.

Degree: Medical Sciences (Human Genomics) (Bachelors) - Exeter University

Subjects offered:Biology, Maths+ 1 more

Biology
Maths
Human Biology

“A tennis coach with 4 years experience teaching, and a passion for it. Studying Medical Science, my enthusiasm allows me to instil the same in others.”

£20 /hr

Isaac S.

Degree: Biological Sciences with a Year in Continental Europe (Bachelors) - Birmingham University

Subjects offered:Biology, Spanish

Biology
Spanish

“Second year Biology and Spanish Student at the University of Birmingham soon to study in Madrid”

MyTutor guarantee

About the author

£20 /hr

Holly D.

Degree: Physiotherapy (Bachelors) - Nottingham University

Subjects offered:Biology, Psychology+ 1 more

Biology
Psychology
Chemistry

“I’m a Physio student at Nottingham University. I have a passion for science, especially with how the body works – I hope this comes across in my tutorials!”

You may also like...

Posts by Holly

How does gel electrophoresis seperate DNA?

What happens when some alkali is added to a buffer solution?

Other A Level Biology questions

What are the key principles of evolution?

What are the four chambers of the heart and what do they do?

How do mutations make non-functional enzymes?

What is a protein?

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