Genes
- Image by The United Stated Dept of Energy Human Genome Project
A gene is a set of instructions for making a particular protein. The instructions are ‘written’ in DNA, which is a very, very, very long molecule. If it was stretched out, the DNA in just ONE of your cells would be 3 metres long. There are about 100 trillion cells in your body (that is 100,000,000,000,000). All their DNA stretched out and laid end–to-end would reach right out of our solar system!
All of the DNA in one of your cells has the instructions for making a person (of course a frog’s DNA has the instructions for making a frog and a daffodil’s DNA has the instructions for making a daffodil).
Most DNA is kept in the nucleus of a cell, acting like a great big recipe book. Bits of it, like individual recipes, get copied out, and sent to the manufacturing parts of the cell, so that the cell can make the proteins it needs. This copying out is happening all the time because the cell uses lots of different proteins.
- Image by Burningrey
All living things depend on genes!
In our cells we have 2 copies of every gene; one from our father and one from our mother. Humans have about 35,000 different genes. There can be different versions of the same gene (like there are lots of different recipes for chocolate cake) these different version of the same gene are called alleles. You often get a different allele from your Mum and from your Dad.
- Jim have you found out what you are going to spend the money on
- what are your views and thoughs on Genetic Modification?? thnaks again! :D isihasswag
- Is there a way that you can’t use animals in your reasearch. couldn’t you use fake skin cells instead :)
- Can you name all of the elements in the periodic table?
- whats the one thing you wantthe world to change?
- is it possible for animals to evolve even further?
- Would you ever donate your body to science when you die???
- sometimes in a science lesson i get bored how can i make science more interesting for myself ? (2 Comments)
- Do you think the world will end soon and if so do you think that global warming will be the cause?
- Why do people believe that alcohol is good for a party atmosphere when it in fact would dampen the mood because it’s
Recent Comments
- I voted for you :) Thankyou for answering my questions, is there any would you like to ask back? :) (2 comments)
- sometimes in a science lesson i get bored how can i make science more interesting for myself ? (2 comments)
- And the winner is... (2 comments)
- Have any of you heard about Minecraft? (3 comments)
- I'm a Scientist - the final two are... (2 comments)
copyright and produced by gallomanor communications ltd 2010
