Sunday, August 21, 2011

3.16 DNA and Genetic information

  • One chromosome contains thousands of genes.
  • There are 4 kinds of bases called: Adenine, Guanine, Cytosine and Thymine.
  • They are found in DNA in the pairs: Thymine-Adenine and Guanine-Cytosine. 
  • When you magnify one gene you can see a double helix which appear parallel.
  • Genes contain an organized structure of bases in this order: ATCGAACCAG.
Question: Why do double helix's appear in parallel shape?
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1 comment:

  1. hgh reviewAugust 23, 2011 at 2:11 AM

    The DNA segments that carry this genetic information are called genes, but other DNA sequences have structural purposes, or are involved in regulating the use.

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