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14 Cards in this Set
- Front
- Back
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Who discovered "the bridge" DNA structure |
Watson and Crick |
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A polymer of nucleotides 3 parts: |
1. Phosphate 2. Sugar 3. Nitrogenous base |
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Why are hydrogen bonds important? |
1. Bonds that holds the 2 sides of the DNA together 2. Hydrogen bonds are easily broken |
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Link these pairs up: Adenine, thymine, cytokinesis, guanine |
A-T C-G |
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Where is DNA located? |
Chromosome of the nucleus |
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A twisted double helix is held together by what? |
Hydrogen bonds |
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What are the 4 bases? |
1. Adenine 2. Guanine 3. Cytosine 4. Thymine |
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The code= |
Sequence of bases along the DNA molecule |
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Genome: |
All base pairs in a species |
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How many base pairs do we have in our genome? |
>3 billion |
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How many base pairs does a chromosome have? |
50-250 million base pairs |
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Gene consists of how many base pairs |
10,000-15,000 |
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The twin roles of DNA |
1. Cell reproduction 2. Governing cellular functions |
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Why is replication so important? |
1. To assure identical daughter cells at the end of mitosis 2. To pass on genetic info in an orderly regulated fashion |
