Tag Archives: genetic engineering

IGCSE Bio Topic 20 – Biotechnology & Genetic Engineering

Topic 20 revision notes in downloadable word format; to be completed.

Biotechnology & Genetic Engineering, a lesson in 17m from dovebiology:

Genetic Engineering a 9m 24s video, Genetic Engineering for AQA GCSE (9m) and Genetic Engineering for Edexcel GCSE (15m), Genetic Engineering & Clones, a 15m video from The Virtual Body.

3.1 Genes

IB Biology 3.1 genes from Bob Smullen

Many assessment statements are covered in videos by Stephanie Castle (with more being added all the time).

Some excellent interactive animations & tutorials on DNA & Genetics – just click on ‘Tour the Basics’ & ‘Heredity & Traits’.

Where do genes come from? A TED-Ed video (not on the syllabus):

2.7 DNA Replication, Transcription & Translation

BioKnowledgy 2.7 DNA replication, transcription and translation from Chris Paine (at Dulwich College Shangai) – taken from his fabulous blog BioKnowledgy.

2.7 Replic Transcr & Transl notes to complete (created by Ms Green)

DNA Replication, Transcription, & Translation in 10m from roxprice:

Many assessment statements are also covered by Stephanie Castle (with more being added all the time).

DNA REPLICATION

A short, simple animation to show DNA replication & here’s an animated tutorial from McGraw Hill Education – structural basis of DNA Replication

In Crash Course Biology #10 – DNA Structure & Replication, Hank introduces us to that wondrous molecule DNA and explains how it replicates itself in our cells.

PCR (the POLYMERASE CHAIN REACTION)

For the Polymerase Chain Reaction – click on ‘PCR’ to see an Interactive Animation from Wiley or here for two animated tutorials from McGraw Hill Education – PCR reactions & PCR. Or why not use PCR yourself in a Virtual Lab from Learn.Genetics (labs on PCR & DNA extraction). Or there’s a 12m PCR for A level video; a 4m video on PCR hereand from the DNA Learning Center (1m 28s):

The PCR song:

MESELSON & STAHL experiment (proof of semi-conservative replication)

Great animation from McGraw-Hill and here’s a video of The most beautiful experiment in Biology (7m 33s).

TRANSCRIPTION & TRANSLATION

Transcription & translation, a 2m 51s animation:

Short, simple animations to show transcription & translation

Fantastic animated tutorials from McGraw Hill Education – Simple Gene Expression & Protein Synthesis

This will take you step-by-step through transcription & translation and here is a translation animation – short and simple.

In Crash Course Biology #11 – Transcription & Translation, Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins.

Some past paper questions answered by IB Blueprint: DNA Replication, Transcription & Translation – Past Exam Paper 1 Questions: Paper 2 QuestionsQuestion 17 [Conservation of DNA sequence during replication]

3.5 Genetic Modification & Biotechnology

IB Biology 3.5 genetic modifcation and biotechnology from Bob Smullen

An animated, narrated tutorial on Gel Electrophoresis which also includes a quiz (from Sinauer Associates); and here is a video tutorial from Stephanie Castle:

For Gel Electrophoresis & DNA profiling – click on ‘Restriction Digestion & Gel Electrophoresis’ to see an Interactive Animation from Wiley or here for fantastic animated tutorials from McGraw Hill Education – DNA fingerprinting & Restriction fragment length polymorphisms (RFLPs) or how about a 5m27s lesson from Naked Science Scrapbook: how does DNA fingerprinting (DNA profiling) work?. Or, finally, Paul Andersen describes the process of DNA Fingerprinting and DNA profiling.

How to set up and run a Gel electrophoresis (for DNA profiling):

For Gene Transfers (genetic modification) see these fantastic animated tutorials from McGraw Hill Education – Restriction Endonucleases, steps in Cloning a gene & construction of a Plasmid vector or click on ‘Cloning’ to see an Interactive Animation from Wiley.

An animated, narrated tutorial on human embryonic stem cells (from Sinauer Associates).

Some excellent interactive animations & tutorials on Stem Cells, Gene Therapy or Cloning just click on Genetic Technology at the bottom of this page or for DNA extraction, Gel electrophoresis, PCR & DNA microarrays just click on Virtual Labs.