Structure of DNA

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  • Created by: m0rrall
  • Created on: 20-03-13 20:06
What are the three basic components of a nucleotide?
A deoxyribose sugar, a phosphate group and an organic base
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Mononucleotides are continuously linked by condensation reactions to form what?
Polynucleotides
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What are the two types of organic base structure and how do they differ?
Double-ring structure (adenine and guanine) have longer molecules than single ring structures (cytosine and thymine
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How many hydrogen bonds are formed between each base pair?
A and T bases link with two hydrogen bonds, while G and C link with three
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How is DNA adapted to passing from generation to generation without change?
DNA is a very stable molecule
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How do the two strands in a DNA molecule separate so easily?
Strands are joined only by weak hydrogen bonds
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How is DNA adapted to carry large amounts of genetic information?
DNA is a very large molecule
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What is the main advantage of the deoxyribose-phosphate backbone?
Genetic information is protected from corruption by the environment
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Other cards in this set

Card 2

Front

Mononucleotides are continuously linked by condensation reactions to form what?

Back

Polynucleotides

Card 3

Front

What are the two types of organic base structure and how do they differ?

Back

Preview of the front of card 3

Card 4

Front

How many hydrogen bonds are formed between each base pair?

Back

Preview of the front of card 4

Card 5

Front

How is DNA adapted to passing from generation to generation without change?

Back

Preview of the front of card 5
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