student%20notes%20lec%2020%20F08

student%20notes%20lec%2020%20F08 - CHM 115 Lecture 20...

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1 CHM 115 Lecture 20 11-02-07 Reading: Biochemistry Interchapter, pp 530-544; page 506, carbohydrates only
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2 Genetic Material: DNA and RNA Just as proteins can be considered __________ ______________________________________ Nucleotide = phosphate + sugar + base phosphate sugar base phosphate sugar base phosphate sugar base
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3 DNA Nucleotide Components In DNA, the “sugar” is deoxyribose. There are four possible bases in DNA. (A, C, G, T)
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4 DNA Polynucleotide
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5 RNA RNA has ________________________ RNA “sugar” is ribose.
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6 Double Helix Complementary base pairs exist There is enough room for exactly an ____________________________________ ____________________________________ Like puzzle pieces: _______________________________ ___________________________________
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Double Helix DNA exists as a “double helix” shape, with the two helices held together through ______________________ . Due to the complementary pairing, DNA
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student%20notes%20lec%2020%20F08 - CHM 115 Lecture 20...

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