IB Biology Topic 2.6 & 2.7: Nucleic Acids, DNA Processes & Gene Transfer

This video covers IB Biology subtopics 2.6 & 2.7 from the IB Biology topic 2 syllabus content.

This IB Biology video begins by exploring the structure of both nucleic acids: DNA and RNA, as well as the evidence of their discovery. It continues by discussing the processes of DNA replication, transcription and translation. Finally, it covers the stages and utility of the polymerase chain reaction.

00:00 Introduction
00:35 Nucleic acids
01:04 Nucleotides
01:53 Condensation of nucleotides
02:31 Structure of DNA
03:22 Evidence for DNA structure
04:00 Example question
04:50 Semi-conservative replication
05:22 Meselson & Stahl
06:37 DNA replication
07:14 Alternative theories of replication
07:46 Transcription
08:33 Translation
10:16 Gene transfer
10:35 Polymerase chain reaction
11:49 Thanks for watching!

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[Dora-pgyv]

Thank you so much, all of your videos are very helpful!

[moodymiray]

You are such a life saver, thanks so much. Great video