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| Bacterial Cells can take up DNA. The transfer of information |
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1.DNA is nucleic acid
2.Building blocks of DNA are nucleotides
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| Nucleotides are composed of... |
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5-Carbon Sugar Deoxyribose
Phosphate Group
Nitrogenous Base |
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Nucleotide Structure Components
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Nitrogenous base attached to the 1'
Phosphate group attached to 5'
OH at the 3' |
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Bond between adjacent nucleotides
5' to 3' orientation |
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Discovered by Franklin & Wilkins
Diameter of DNA is 2nm and makes complete turn of helix every 3.4nm |
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| found out that dna was double helix structure. |
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Class of enzymes that all synthesize dna from a pre-existing template
require primer and synthesize in 5' to 3' |
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| The Y-Shaped end fo a growing replication bubble in a dna molecule undergoing replication |
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| Dna strand that must be synthesized discontinually because of the 5' to 3' directionality fo dna polymerase during replication, and antiparallel nature of DNA |
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| The DNA strand that can be synthesized continuosly from the origin of replication |
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| Sequence of about 10 RNA nucleotides complementary to unwound DNA that attatches to replication fork, the DNA polymerase uses the RNA primer as a starting point for addition of DNA nucleotides to form new DNA strand. |
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| a short segment of DNA produced by discontinouos replication elongation in the 5' to 3' direction away from the replication (lagging strand) |
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| Repeated DNA sequence on the ends fo eukaryotic chromosomes |
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| Contains RNA region that is used as a template so a DNA primer can be produced |
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| As people age there is less telomere activity |
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| Cancer cells have telomerase activity |
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| Bond between adjacent thymines. A photolyase enzyme recognizes the damage and binds to dimer. The enzyme absorbs visible light and uses energy to cleave dimer |
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| Genetic Material can pass from one cell to another |
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