- Genes and Inheritance - A fairly comprehensive review of Year 11 Genetics. Mouseover specific terms to be reminded of definitions. Each page has a quiz at the end to check your understanding. Some interesting applications of inheritance with respect to genetically inherited diseases. A complete quiz at the end.
- Tour of the basics of genetics - Animations to remind you of the structure of DNA and how it works.
- Structure of DNA - A narrated video to watch. Nice because it shows how the actual atoms in the molecule are arranged. Very complex in the vocab, so at best, just watch the pictures.
- DNA workshop: DNA replication (& protein synthesis) - Interactive animations to review the processes of DNA replication (and protein synthesis). Get involved; it doesn’t take long!
- DNA replication – This animation includes more of the nitty gritty of replication, showing the enzymes that are involved. e.g. helicase, polymerases, ligase.
HOW SCIENTISTS MADE THEIR DISCOVERIES ABOUT DNA
This isn't examined at any level, but it's still interesting!
- Meselson-Stahl experiment: DNA replication - How scientists found out that DNA replicates by unzipping and copying complementary strands.
- Decoding DNA - The science involved in decoding DNA – finding the sequence. More for 13BIO, but interesting nevertheless.
- DNA from the beginning - A huuuuuuge resource including text, animations, and a lot of the science behind the knowledge. Use the menus down the side to navigate through some of the main points of the genetics topic. Of the three main sections, Classical Genetics and Molecules of Genetics are the most relevant.
Don't worry about the names of stages, just watch what the chromosomes are doing.
Here's a clip of mitosis in 3 dimensions. The narration is complex but the animation is good.
- Mitosis -Narrated and/or step-through animation of mitosis with a quiz at the end.
- Cells Alive - mitosis - Compare a diagram of mitosis with photographs of an actual real cell dividing.
- Mitosis and the cell cycle - Narrated animation and a quiz. Animation is nice but the text level is high.
- Mitosis and cytokinesis - Narrated animation and a quiz. Animation is nice but the text level is high.
- BBC Science: Cell division - Cell division by mitosis, including stages, and then a test.
- Mitosis: Interactive Java Tutorial - Very detailed description of mitosis, and an animation to boot. Not particularly interactive.
- Genetics Review: Mitosis - Brief diagram and text reminder of the names of the stages of mitosis for Year 13.
- Mitosis and cytokinesis - Animation of these processes in a plant cell. High level text.
- Cell division and cancer - Extra for experts. A somewhat long but good review of cell structure including specialisation, as well as cell division by mitosis (with an animation; no stage names). Includes what happens when cell division goes out of control i.e. cancer. Self-check tests throughout.
MEIOSIS
Best animation I have seen of the first division, but doesn't feature much detail on the second division.
- Stages of meiosis - Beautifully coloured animation with a quiz.
- Meiosis - Nice animation with stage names and controllable slider. Step-through or narrated.
- Mitosis and Meiosis Comparison 1 and Comparison 2 - Animation is the same for both, but quiz differs.
- Special features of meiosis - Shows crossing over in closer detail as well as highlights the reduction division
- Crossing over interactive - Click through the stages to see how crossing over creates new combination of alleles (using colours, rather than letters, to represent alleles)
- Random orientation of chromosomes during meiosis - Another animation of independent assortment. A pretty one.
- Independent assortment and gamete diversity - An animated and narrated or step-through tutorial and a quiz. Good coverage.
MITOSIS VS MEIOSIS: COMPARISONS
- How Cells Divide: Mitosis vs Meiosis - A brilliant side-by-side animation comparison of these two cell divisions which highlights the differences between them. Stages are named and described but can be ignored for Year 11 and 12. If the flash doesn’t work for you, try the text-only link here.
- Comparison of meiosis and mitosis - Another superb animation of meiosis vs mitosis. This one you can fast forward and rewind easily.
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