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14 Cards in this Set
- Front
- Back
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Phenotype (L1)
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The morphological, biochemical and behavioural properties of an organism
resulting from a specific genotype and its interaction with the environment. |
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Genotype (L1)
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The specific allelic constitution of an organism, either of the entire organism or for
a certain set of genes or a certain gene. |
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Telomere (L2)
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The ends of a eukaryotic chromosome
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Semi-Conservative Replication of DNA (L2)
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The method of DNA replication where the new molecule of DNA has one strand which comes from the parent molecule and one strand which is newly synthesised.
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Complementary Base Pairings (L2)
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Nucleotides or nucleotide sequences that are able to base pair. For example, G and C are complementary as are A and T.
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Pyrimidine (L2)
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One of the two types of nitrogenous base compounds found in nucleotides. The pyrimidine bases in DNA are cytosine and thymine.
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Purine (L2)
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One of the two types of nitrogenous base compounds found in nucleotides. The purine bases in DNA are guanine and adenine
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5' (PO4) End (L2)
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The end of the polynucleotide that terminates with a phosphate attached to the 5'- carbon of the sugar.
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3' (OH) End (L2)
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The end of a polynucleotide which terminates with a hydroxyl group attached to the 3'- carbon of the sugar
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Leading/Lagging Strand (L2)
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The leading strand is that which is synthesized continuously, whereas the lagging strand is synthesized in a discontinuous fashion during DNA
replication. |
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Okazaki Fragments (L2)
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One of the RNA-primed short segments of DNA synthesized during replication of the lagging strand of the double helix.
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Topoisomerase (gyrase) (L2)
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An enzyme which can relax DNA by cutting and reforming the polynucleotide backbones
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Single-Stranded Binding Protein
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One of the proteins that attaches to single stranded regions of DNA and prevents the reformation of base pairs, particularly in the region of the replication fork.
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Ligase
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Enzyme which joins sequences of DNA
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