Create a DNA fingerprint
Interactive exercise – create a DNA fingerprint to solve the crime – which sister licked the lollipop?
DNA fingerprinting animation
Animation explaining how DNA fingerprinting works.
Really very useful site produced by a teacher for AQA and OCR specifications. Here you will find powerpoints, revision notes, lots and lots of past paper questions and mark schemes, all organised very neatly into topic areas. Currently for “old” scheme rather than new one, but this is not a problem as much of the content is the same. All you need for revision is here.
The Meselson-Stahl experiment
Resources from HHMI linked to their double helix film – this worksheet and teacher notes explain the Meselson-Stahl experiment which showed that DNA replication is semi-conservative.
The double helix film
16 minute film from HHMI on the discovery of the structure of DNA. Excellent introduction or background information.
Structure of a leaf labelling
From Animated Science blog, useful drag and drop leaf labelling revision exercise
Regulation of blood glucose level Kahoot
10 question multiple choice Kahoot quiz on control of blood glucose level – lots of long words all beginning with G.
DNA structure and replication Kahoot
10 question Kahoot quiz on DNA structure and replication
Biology corner quizzes
Multiple choice quizzes on many biology topics – written for AP Biology (US course) but many topics are at a similar level to A level.
Only half of a chromosome is DNA, study finds
News article from University of Edinburgh, study into chromosomes has found that DNA makes up less of chromosome structure than was previously though.
Woman falls pregnant twice in ten days news story
BBC news article about a very rare case of superfetation – where a woman became pregnant again 10 days after the original pregnancy. The babies were born at the same time.
Page of notes with diagrams from A Level Biologist site, includes Pacinian corpuscle and brief re-cap of rods and cones in the retina.