Difference between revisions of "DNA"
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===About DNA=== | ===About DNA=== | ||
| − | : DNA is found in the [[nucleus]]. | + | : [[DNA]] is found in the [[nucleus]]. |
| − | : DNA coils together to make [[chromosomes]]. | + | : [[DNA]] coils together to make [[chromosomes]]. |
| − | : DNA is passed from parent to [[offspring]]. | + | : [[DNA]] is passed from parent to [[offspring]]. |
| − | : DNA controls most of our physical appearance. | + | : [[DNA]] controls most of our physical appearance. |
| − | : DNA determines your eye colour, nose shape, height, skin colour and whether you are [[male]] or [[female]]. All of these things can be affected by environment as well, but the DNA provides the original instructions on how to build you. | + | : [[DNA]] determines your eye colour, nose shape, height, skin colour and whether you are [[male]] or [[female]]. All of these things can be affected by environment as well, but the [[DNA]] provides the original instructions on how to build you. |
| + | : [[DNA]] has a '''double helix''' structure, which means it is shaped like twisted ladder. | ||
| + | |||
| + | ===Discovery of DNA=== | ||
| + | : [[DNA]] was first discovered in 1869, but at the time nobody knew how it worked or what its structure was. | ||
| + | : In 1928 an experiment with [[DNA]] showed that it was responsible for [[heredity]]. | ||
| + | : IN 1953 Francis Crick and James Watson found evidence that [[DNA]] was a long double helix [[molecule]]. | ||
Revision as of 11:57, 21 September 2018
Key Stage 3
Meaning
DNA is the molecule inside an organism that provides instructions on how to build that organism and how the cells behave inside the organism.
About DNA
- DNA is found in the nucleus.
- DNA coils together to make chromosomes.
- DNA is passed from parent to offspring.
- DNA controls most of our physical appearance.
- DNA determines your eye colour, nose shape, height, skin colour and whether you are male or female. All of these things can be affected by environment as well, but the DNA provides the original instructions on how to build you.
- DNA has a double helix structure, which means it is shaped like twisted ladder.