PCR In vitro cloning: A-level Biology. Polymerase chain reaction process and advantages

Learn the process of PCR (polymerase chain reaction), or in vitro cloning, as a technique to make large quantities of DNA fragments rapidly. Learn the advantages of this method over in vivo cloning.
For A-level Biology.

For past paper questions linked to this topic click these links.

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[khayalguliev]

Instead of reading PDFs (which are teacher gave me) watching this video and taking notes are more understandable!!

[georgia]

hi !! have you got any videos on genetic screening? its not in your playlist for topic 8 so i was curious if you've made a video on it yet because i have a paper 2 exam tomorrow! thank you in advance! 
and also these videos have been really helpful and are some of the best a level videos i've found for biology - if not THE best!! i've already recommended you to my friends at school! thank you so much for these videos!!

[Khemani_RL]

The music in that outro was a shambles 😅 Thanks for the help though! 🙌🏾 I was really struggling with PCR

[nicciouwerkerk]

if you were to amplify a single strand of DNA instead of a double strand (such as a DNA probe), would that produce single or double stranded DNA?

[theresahamilton]

Does taq polymerase catalyse the condensation reaction to form phosphodiester bonds? Between nucleotides? Or for H+ bonds between complementary base pairs?

[FireFun-ettl]

I’m confused. How are the DNA fragments isolated? And do you need to cut out DNA fragments before PCR? I thought u can have a long dna strand and use primers to only amplify the sections that you want

[ell]

Is this the same as the Sangers method because I’m so confused whether they are the same or different

[emilylongstaff]

Hi can I ask why 2 primers are needed in PCR?

[zanirapatel]

When will you finish uploading all the content?