Chap 11. DNA Vocabs - Chapter11.NUCLEICACIDSAND...

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Chapter 11. NUCLEIC ACIDS AND PROTEIN SYNTHESIS Kyle Lee Tues Feb 28 th , 2006 Biology I. Structure of DNA 1) Deoxyribose – it is a sugar molecule that has a shape of pentagon. It is a part of DNA. 2) Bases : A – Adenine, G – Guanine, C – Cytosine, T – Thymine 3) Nitrogenous base - 4 bases of DNA that contains a nitrogen atom. 4) Purine – an organic molecule that has a double ring of carbon and nitrogen atoms. Ex) adenine, guanine 5) Pyriminine – an organic molecule that has a single ring of carbon and nitrogen atoms. Ex) Cytosine, Thymine 6) Double helix – it is a shape of DNA, which looks like a spiral staircase. 7) Complementary base pairs – Cytosine is a complementary base pair Guanine, vise versa; adenine is to thymine vice versa. 8) Base-pairing rules – the rule stating that in DNA, cytosine pairs with guanine and adenine pairs with thymine and in RNA, adenine pairs with uracil. II. Replication of DNA
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Chap 11. DNA Vocabs - Chapter11.NUCLEICACIDSAND...

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