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The data were obtained from a study of the length of time spent in
The data were obtained from a study of the length of time spent in

... The enzyme (protein) which binds the new nucleotide bases to the new DNA strand.  What is a mutation? When mistakes cause changes in DNA resulting in errors RNA and Protein Synthesis  What are the monomers and polymers of nucleic acids? Monomer = nucleotide = nitrogen base + sugar (DNA = deoxyribo ...
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... CAREFUL: Make sure to add it down the side of the tube. DO NOT MIX! 10) Let this sit for a few minutes. You should see DNA (looks like snot) rise out of the solution. ...
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... Viral DNA temporarily incorporated into host DNA as a PROVIRUS Provirus replicated along with host DNA Remains inactive until environmental triggers Activation leads to lytic cycle ...
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... On the menu at the right click on Molecules of Genetics tab and then number 27, “Mutations are changes in genetic information”. Read the text and answer the following questions. 1. DNA differences results from a mutation of what 3 possibilities? 2. In humans, where do the majority of mutations occur ...
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... or Vac-Man® Jr. Laboratory Vacuum Manifold. For each miniprep, prepare one Wizard® Miniprep Column. Attach one of the Syringe Barrels to the Luer-Lok® extension of each Minicolumn. Insert the tip of the Minicolumn/Syringe Barrel assembly into the vacuum manifold. When all the columns are prepared, c ...
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DNA repair



DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day. Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell's ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, the DNA repair process is constantly active as it responds to damage in the DNA structure. When normal repair processes fail, and when cellular apoptosis does not occur, irreparable DNA damage may occur, including double-strand breaks and DNA crosslinkages (interstrand crosslinks or ICLs).The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states: an irreversible state of dormancy, known as senescence cell suicide, also known as apoptosis or programmed cell death unregulated cell division, which can lead to the formation of a tumor that is cancerousThe DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
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