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Friday 5 April 2013

NUCLEIC ACIDS

DNA and RNA are used to direct the activity of cells.
Cells look and function a certain way because of directions contained in the DNA.
They have 3 Parts:
  • a Carbohydrate (pentose, a 5 carbon sugar)
  • a single Base (one of five possibilities)
  • a Phosphorous
Here is what they look like all put together:
Nucleic acids are linked together to form long chains, and DNA is made of two parallel chains:
These parallel chains have a twist to them so DNA is often called a Double Helix.
Making DNA molecules:

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