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17 Cards in this Set
- Front
- Back
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Components of a DNA Nucleotide |
Phosphate, Deoxyribose Sugar, a Base |
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Type of Bond on the backbone of the DNA molecule |
Strong Sugar Phosphate |
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The Four DNA Bases |
Adenine, Thymine, Cytosine, Guanine |
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Base Pairing Rule |
Adenine -> Thymine | Cytosine -> Guanine |
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The role of hydrogen bonds in the DNA structure |
To hold the nucleotides together with other nucleotides |
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The name of the coiled structure adopted by DNA |
Histones |
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Where is the 5' and 3' carbons on a DNA Nucleotide |
5' is right beneath the phosphate, 3' is on the bottom left corner of the nucleotides |
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How do 2 stands of DNA align themselves to eachother |
They twist into a double helix |
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What forms the base sequence on DNA? |
The genetic Code |
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How is DNA organised in prokaryotes |
In circular rings called plasmids |
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How is DNA organised in Eukaryotes (mention histones) |
DNA is tightly coiled and packaged around bundles of protein, known as histones, they are in the nucleus/ mitochondria |
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Which Eukaryote also has plasmid |
Yeast |
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What controls gene expression |
The regulation of transcription and translation of DNA Sequences |
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State the components in an RNA Nucleotide |
Phosphate, Ribose Sugar, Bases |
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Describe 3 differences between mRNA and DNA |
DNA: 2 nucleotide strand, Thymine, Ribose mRNA: 1 nucleotide strand, Uracil, Deoxyribose |
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Describe the role of mRNA |
Takes a complimentary code of DNA from the nucleus to the ribosomes |
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Describe the role tRNA |
The amino acids arrive at the ribosomes attached to the tRNA molecule |
