Biology DNA, Mitosis and Genetics wake tech

Biology DNA, - A A nucleic acid is made of nucleotides 1 Composed of a phosphate group 2 Five carbon Deoxyribose sugar 3 One of four Nitrogenous

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A. A nucleic acid is made of nucleotides 1. Composed of a phosphate group 2. Five carbon Deoxyribose sugar 3. One of four Nitrogenous bases a. guanine b. thymine c. cytosine d. adenine
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DNA exists in helix form, two helixes are held together by H bonds guanine to cytosine adenine to thymine The chemical bond is between bases. It is a Hydrogen bond.
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Example of A and T base pairing:
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DNA Structure 1. A strand of DNA is always paired with its complement, held together by hydrogen bonds between bases. 2. DNA forms a ladder of sugar phosphate/sugar phosphate vertically. Paired bases are horizontal rungs. 3. DNA ladder is coiled into
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DNA Structure 1. A strand of DNA is always paired with its complement, held together by hydrogen bonds between bases. 2. DNA forms a ladder of sugar phosphate/sugar phosphate vertically. Paired bases are horizontal rungs. 3. DNA ladder is coiled into
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A. DNA carries the instructions to make all proteins. B. Genes (pieces of DNA) occupy a certain position on a chromosome. Genes code for specific characteristics or traits
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1. Each Human has 46 chromosomes in each of their cells. Before cells reproduce they double their DNA. Then parent cells form exact copies of themselves. We call this cell division mitosis.
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This note was uploaded on 04/18/2008 for the course BIO 110 taught by Professor Ms.mimidavis during the Fall '07 term at Wake Tech.

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Biology DNA, - A A nucleic acid is made of nucleotides 1 Composed of a phosphate group 2 Five carbon Deoxyribose sugar 3 One of four Nitrogenous

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