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Genetics revision 1

This section covers the chemical structure of a gene.

QuestionAnswer
These people constructed the first working model of the DNA molecule. Watson & Crick.
3 units of DNA sugar (deoxyribose), phosphate groups & bases containing nitrogen
4 different bases adenine, guanine, thymine & cytosine
2 complementary bases adenine-thymine (A-T) & cytosine - guanine (C-G)
DNA is twisted around a central axis called a _____ ______ double helix
Histones specialized proteins that pack DNA tightly together
nucleosome fundamental packing unit
Created by: Delta_rocks
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