Couple of animated websites which might be useful for your learning... Enjoy!
http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html
http://www.phschool.com/science/biology_place/labbench/lab1/intro.html
Monday, February 9, 2009
Sunday, February 1, 2009
Structure of a DNA molecule
Take note that the basic unit of a DNA molecule is a (deoxyribo)nucleotide.
Each nucleotide consists of :
1) A sugar-phosphate group -- deoxyribose)sugar + phosphate group
--> makes up the backbone of a the DNA molecule
2) A nitrogenous base (Adenine / Thymine / Guanine / Cytosine) which encodes for genetic information.
You should be able to identify these different components in a DNA molecule.
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