Chapter 3 - College Biology (Pg.9)

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Last updated 11:04 PM on 8/27/26
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5 Terms

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DNA

  • Double helix structure

  • Sugar and phosphate group make up “backbone”

  • Nitrogenous bases make up of “rungs”

  • Base pairs (and therefore strands) are “complementary”


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“Anti - parallel” (DNA)

The two strands are inverted, so the 5’ carbon of one strand faces the 3’ carbon of the other

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Replication

Semi - conservative = 1 parental strand, one new strand

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RNA

Single stranded

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mRNA

  • Messenger

  • Works in sets of 3 (“codons”)

- each codes for 1 amino acid

  • Carries info from DNA out into the cytoplasm