Index. What is Meiosis? | Concord Consortium. DNA - BrainPOP. ABC online education. Transcript MARK HORSTMANYou are about to witness what the Science Journal described as the breakthrough of the year. Where stem cells are created from ordinary adult cells without the use of eggs or embryos. But if you're a bit confused about what a stem cell even is, let's first go back to basics. The human body is an incredible thing. ABC online education. Transcript 00:00:00:00Fossils of dinosaurs. A model of an ancient creature. Bones.00:00:00:00DR PAUL WILLIS:More creatures are extinct today than are alive. What they were like as living animals will always be a bit of a mystery.00:00:05:12He crouches by a huge model of an animal.00:00:05:12DR PAUL WILLIS:If you want to find out what life was really like for fascinating beasts like Diprotodon here or... how other creatures evolved and became extinct.00:00:10:08Other creatures.00:00:10:08DR PAUL WILLIS:Perhaps you want to find out about human remains from the more recent past.
ABC online education. Transcript 00:00:00:00NARRATOR:Transgenic pigs, cloned sheep... ..cotton that resists insects... ..tomatoes that last longer, cows that produce more milk - they're already here. It's what may be coming in genetic engineering that has everybody watching. Why? Because DNA controls all life, and we are learning to control DNA. That means we can alter life directly - our environment, our health, and even our evolution as the human species will possibly be changed by genetic design in the foreseeable future. At the centre of this revolution is the science of recombinant DNA.
DNA codes for proteins and almost every one of life's processes is run by proteins. ABC online education. 00:00:01:20NARRATOR:So, if cloning works so well, why do both plants and animals also reproduce sexually? What's the point of sexual reproduction? One answer, it seems, is the need to cope with error. DNA is susceptible to damage. Take a well-known example. The sun is hot. ABC online education. ABC online education. 00:00:00:23REPORTER:Biochemists soon found that the nucleus containing the chromosomes was a mixture of protein and DNA. But which contained the genes? The protein or the DNA? A clever experiment gave the answer. It was DNA - deoxyribonucleic acid.
At last, the focus was down to a single compound. This stringy stuff, which you can separate out from any living tissue in your own kitchen if you like, had to be responsible for four things if it was going to qualify as genetic. ABC online education. 00:00:06:21REPORTER:There have been more protests in Europe about genetically modified foods. Seed grown in the United States has been the focus of Greenpeace attention in Germany, Holland and in Britain.00:00:18:07NARRATOR:It seems like every week, there's a new story about genetics. People are worried about eating genetically modified foods, about human cloning, about moving genes across species, about having DNA data used against them, about genetically engineered biological weapons.
On the other hand, we see stories of medical miracles, of the preservation of endangered species, of modified organisms saving the environment, of new and better products, of crime solved by DNA fingerprinting. People like these things because they see them improving their lives. So, why can't we keep the genetics we like and stop the genetics we don't like? Why? Well, for a start, it's the same genetics. ABC online education. ABC online education. 00:00:03:01NARRATOR:Why is it that some people are tall and others short? Why are some dark-skinned and others pale? Indeed, why is it that around half are men and half are women? The answer begins with breeding. For thousands of years, humans have recognised differences between individuals. They bred strong with strong, better with better to produce improved offspring. However, no-one knew why such breeding worked. Biology. Explore. Watch, listen, debate & discover with our experts Copyrighted image Credit: BBC Introductory level Duration 10 mins Updated 12 Dec 2014 Do you find yourself screaming at the screen in frustration when Hollywood films get the science wrong?
Copyrighted image Credit: Biology Week Duration 1 hour 30 mins Updated 22 Nov 2013 Seven days celebrating all the biosciences: 12th - 18th October. Free OpenLearn courses. Migration Free CourseFeaturing: Video Audio Intermediate level Duration 8 hours Updated 23 Oct 2014 This unit introduces migration in animals, with special reference to birds, and also introduces the themes of movement, selection and homeostasis. Become an OU student. GENIE Wear A Chimp on your Wrist - DNA and Protein. These activities include DNA base paring and DNA to protein modeling! The resource comprises of two linked activities which not only explore the structure of DNA, but then take it a step further to see how this DNA is translated into amino acids.
They are both fun modeling activities that involve the students in making a bead bracelet of a section of DNA from the animal of their choice (a list is supplied with all the supporting documentation). They then go on to translate this DNA sequence into their respective amino acids which they make into another bracelet using larger, and different coloured beads.
The activity can be used to demonstrate how DNA is similar between different species and that different species may have the same gene, performing the same function, but that the DNA that makes up this gene differs between species. This session fits in with Key Stages 3 and 4 of the National Curriculum for England (ages 11-14 and 14-16). What this activity will demonstrate is: Back to top. GENIE The Human Genome Race! This is a really fun and competitive exercise where the students make up a genetic sequence from a number of overlapping fragments (an example of which is below). Prizes are always useful as an incentive for the winner(s). To do this exercise you only need some stopwatches and the information provided in the supporting documentation. We tend to divide the students into groups of about 5 or 6 people, and give each group a pack of the fragments to fit together.
There is the option to do a shorter version which will take less time and we give them this as the practice warm-up before giving them the extra sequences for the real exercise. It is fast and furious, but involves them working together in a group and is good fun. This activity can be carried out with students from the age of 11 to adults. This session fits in with Key Stages 3 and 4 of the National Curriculum for England (ages 11-14 and 14-16). What this activity will demonstrate is: Back to top. GENIE Go Bananas! This is a simple and very flexible laboratory activity which can take from 20 minutes to over an hour, depending on the age of the students; numbers and, how involved you want to make it. The laboratory session shows students how to extract DNA from bananas, using ingredients that can be found in the home, and basic laboratory equipment.
This activity has even been run in Malawi using improvised equipment such as plastic drinks bottles for funnels and drinking straws for pipettes. Group of young boys looking at banana DNA in a tube GENIE has done this laboratory practical session with different age ranges, varying from age 10 (year 6), to adults and it can easily be adapted to suit. All these different age groups have really enjoyed it and have also found it a fun and exciting learning experience. This session fits in with Key Stages 3 and 4 of the National Curriculum for England (ages 11-14 and 14-16). What this activity will demonstrate is: Malawi students filtering banana mash Back to top.
Structure and Function of DNA. GENIE Dolly Mixtures. This is a simple, hands-on activity where students get the chance to make their own clone of Dolly the sheep. It does involves some preparation in the form of props to represent both the donor and surrogate sheep (we used cardboard boxes), and the cells with nuclei (we used clear plastic food boxes with table tennis balls as nuclei). All the information you need to run this activity is provided in the teacher notes.
The aim of this activity is for students to use "sterile" techniques to extract the nucleus from the surrogate egg cell and replace it with a nucleus from a donor autosomal cell and then replace the whole cell back into the surrogate. Once Dolly is born, the main question is, "how do you prove that she is a clone? The activity should spark quite a few questions about cloning, the ethics, the situations where cloning may be useful, when and where cloning might be acceptable, and what the future may hold. What this activity will demonstrate is: Back to top. Gene Jury. DNA origami: how to fold a double helix. Zondle Game - Biology DNA, Genes and Chromos. Human DNA Replication. Genes Are Us - Meet Pamela. What is DNA. Dna. Genome British Columbia :: DNA Code Bracelet. Make DNA Jewelery featuring Your Name! Download an Activity sheet with photos Materials StringBeads, in each red, blue, green & black Science BackgroundDNA is an ‘instructional code’ to make proteins for our body.
It uses 4 bases to code all the information in DNA represented by A, T, C, and G. There are several steps to breaking the code. The code is stuck in the centre of the cell (nucleus). DNA code bracelet BackgroundScientists have created shorthand that gives each amino acid its own letter, corresponding to 20 letters of our alphabet. Create DNA JeweleryCreate the DNA code for your name. Using the DNA Alias code, below, figure out the 3 letter code for each letter in your namee.g. Remember that each letter of your name is represented by 3 letters in DNA so you will have 3 times as many beads as letters in your name DNA Alias & CodeNote: There are only 20 amino acids. The above activity is fun for all ages. Download an Activity sheet Rating: - Kris Reviewed by Yasmin on Jun 29th, 2011 cool.
Human genome project. Inside dna A GENOMIC REVOLUTION. Yummy Gummy DNA | Activities | yourgenome. UPD8 - Top Dog - Type: Activity Learning Strategy: Case study Topic: Inheritance of characteristics With Crufts behind them for another year, breeders and judges are now preparing for smaller dog shows all over the UK. Many of these rely on the strict selective breeding of pedigree dogs. This can lead to chronic genetic problems and diseases. Is pedigree breeding ethically acceptable? This activity gives students a chance to decide for themselves. This activity is designed to be used in conjunction with Simpletons: a tool for teaching ethical thinking. 11-16 How Science Works:4b: consider how and why decisions about science and technology are made, including those that raise ethical issues. Published: 19th March 2007Reviews & Comments: 23 Learning objectives Students will: • Learn about selective breeding in the context of dog breeds • Learn to apply different ethical approaches to making a decision about pedigree breeding of dogs Try the activity 14 – 16 GCSE specifications Running the activity News links.
Genetic Alliance UK - Helping those with Genetic conditions, Genetic disorders and Genetic diseases. Genes and inheritance. Genes contain the code to make proteins, which are involved in the development and functioning of body organs and systems. Proteins are essential to life and have many functions in the body, for example, as enzymes, regulators and structural molecules. Genes are also the units of heredity by which characteristics, such as eye colour and blood group, are passed from one generation to the next.
There are a number of interactive features in this e-source: A glossary of terms: any word with a glossary entry is highlighted like this. Clicking on the <acronym title='Glossary Item'>highlighted</acronym> word will open a new window with a definition of the word. Moving the mouse over the highlighted word will show a definition of that word.Quick questions: at the end of each page or section there is a set of quick questions to test your understanding.Animations: most of the animations can be expanded to full screen size, ideal for showing on an interactive whiteboard.