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):
10.3 gene pools and speciation from Bob Smullen
Speciation: an illustrated introduction in 8 minutes or how about the Speciation Song – a song and an animation to introduce Speciation?
IB 10.3 – Gene Pools and Speciation, a 14m 40s video lesson from Dan Rott videos.
Crash Course Biology #15 – Speciation: Of Ligers & Men, in which Hank explains speciation in terms of finches, ligers, mules and dogs.
Paul Andersen (from Bozeman High) explains Reproductive Isolation and Speciation, then details the processes of Speciation & Extinction and finally describes Genetic Drift (this is more detail than is required for IB).
Here’s a presentation that explains the origin of species (speciation) very clearly:
Hip, hip hooray for DNA! – the DNA song by Peter Weatherall (2m 47s).
Where do genes come from? A TED-Ed video (not on the syllabus):
17.1 & 17.2 revision notes in downloadable word format; to complete.
Mitosis (in english). And here is Mitosis in american & mitosis – a 2m 45 s vid from Bitesize Top 20 Demos. Also here is What is Mitosis? (a 3m 45s lesson) & Mitosis music video by Peter Weatherall (2m 7s).
Here is Meiosis in american (and in more detail than you need).
Science Bank 9 (Cells & Tissues): Part 3 (from 9m 15s) also covers Mitosis & Meiosis. As does Cell Division (a 2m 3s vid from BBC iScience) & Cell Division (a 5m 23s vid from GCSE Bitesize).
17.3 & 17.4 revision notes in downloadable word format.
A short, simple explanation of Gregor Mendel’s work and simple gentetic crosses:
17.5 Inheritance notes in downloadable word format; to be completed.
GCSE Bitesize – Inheritance, a tutorial (4m 46s):
BBC Short Circuit Genetics – a 19m video.
Here are some videos about genetic diseases: Sam’s story (cystic fibrosis) & CF short movie; sickle cell anaemia; what is Huntington’s disease?
Topic 18 revision notes in downloadable word format; to be completed.
VARIATION
It’s coming!
ADAPTIVE FEATURES
A lesson in Plant Adaptations from Ms Cooper (12m 15s); Specialized Leaves, a short 1m 39s video.
NATURAL SELECTION
The Evolution of Life on Earth in 24 hours:
What is Evolution? A 9m video from Stated Clearly:
What is Natural Selection? A 9m video from Stated Clearly:
How evolution works – a gentle 12m cartoon video (from Kurz Gesagt – in a nutshell) and here is Natural Selection made easy in a 9m 48s video (from potholer54).
A simulation of Natural Selection:
| Click to Run |
Here’s Darwin’s Song from Horrible Histories and in What is Evolution? Biology teacher Ceri Evans gives a master class to students on what he says is arguably the greatest idea anybody ever had: evolution (28 mins). 2 more videos – James May’s things you need to know – Evolution (29m) & BBC Short Circuit Theory of Evolution (19m).
Finally, just for interest, a short (less than 5 minute) video clip from BBC iScience – Evolution of the Eye.
SELECTIVE BREEDING (ARTIFICAIL SELECTION)
This powerpoint covers Artificial Selection (selective breeding) – but we only need the first five slides:
Igcse biology edexcel 5.10 5.20 from Marcos Rodriguez
A lesson on Selective Breeding from Mr Dare:
IB Biology 3.3 meiosis from Bob Smullen
Mr. Andersen uses chromosome beads to simulate both Mitosis & Meiosis (11m 53s):
Three animated, narrated tutorials from McGraw Hill Education how meiosis works, stages of meiosis and Mitosis & Meiosis compared – and here’s one from Sinauer Associates – Meiosis.
In Crash Course Biology #13 – Meiosis: Where the Sex Starts, Hank gets down to the nitty gritty about meiosis.
Here is Mr W’s Meiosis! Rap and here is Mitosis versus Meiosis RAP BATTLE (from Asap SCIENCE). Finally, Hitler gets confused by Meiosis.
To diagnose genetic (chromosomal) diseases in an unborn baby, there are two ways of taking samples – Amniocentesis or Chorionic Villus Sampling.
Scientific Eye – Reproduction & Genetics (a 19m video) and here is a 15m 25s video covering Variation, Selective Breeding & Classification from KS3 Bitesize:
What is Selective Breeding? – a 2m 30s video:
Super Cow Creators – these gigantic cows resemble bovine body-builders. See how breeders have achieved such amazing results (4m 44s).
BBC Short Circuit Genetics – a 19m video – and Genetic Engineering (Science in Focus) – another 19m video.
IB Biology 3.4 inheritance from Bob Smullen
A short, simple explanation of Mendel’s work:
Mr Andersen talks you through Genetics:
And here Paul Andersen introduces A Beginner’s Guide to Punnett Squares in a 12m 15s tutorial. He also gives examples of monohybrid crosses and one example of a dihybrid cross (which we don’t need to know for SL).
In Crash Course Biology #9 – Heredity, Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.
Inheritance of blood types:
Chernobyl: what happened thirty years ago? – one of the engineers tells his story in 2m 50s. The health dangers of radiation in 4m 32s.
A 4m 40s video from TEDEd: How this disease changes the shape of your cells
IB Biology 3.5 genetic modifcation and biotechnology from Bob Smullen
An animated, narrated tutorial on Gel Electrophoresis 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.