DNA STRUCTURE - PowerPoint PPT Presentation

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DNA STRUCTURE

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A light refresher on the structure of DNA – PowerPoint PPT presentation

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Title: DNA STRUCTURE


1
  • The finger print that is inside your body!

2
DNA Molecule
  • Discovered in 1953

Watson Crick
Currently lives in Cold Spring Harbor, Long
Island, NY
3
Every living thing has DNA.
4
You and I have approximately 10 trillion cells
About 200 different types of cells
Other types Bone cells Pancreatic
Cells Cartilage cells Hepatocytes (Liver
Cells) Muscle cells Rods Cones (Eye Cells)
etc
5
In each cell we have 46 chromosomes
6
TWO TYPES OF CHROMOSOMES
7
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8
Each chromosome has a strand of DNA that is about
6.5 feet long
9
So if you were to stretch out all the DNA found
in you it would circle the earth
10
So if you were to stretch out all the DNA found
in you it would circle the earth
about 188,000 times !!
11
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12
DNA stands forD DeoxyriboseN NucleicA Acid
DNA is too small to see, but under a microscope
it looks like a twisted up ladder! (The Double
Helix)
13
Deciphering DNA's structure.
  • There are 4 different bases in a DNA molecule

ADENINE A
THYMINE T
GUANINE G
CYTOSINE C
They connect to each other in a certain special
way
14
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