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Name_______________ Pre-Assessment
Name_______________ Pre-Assessment

... Below is a description of steps to the second stage of protein synthesis called translation. However, the steps of translation are out of order. Match each step with the part of the translation it represents. Record the corresponding letter for that step next to its corresponding part in translation ...
DNA - Wsfcs
DNA - Wsfcs

... Translation (from mRNA to protein) = The synthesis of a polypeptide using the genetic info encoded in an mRNA molecule. There is a change of “language” from nucleotides to amino acids.  How is the language of mRNA translated into the language of proteins?  The process of converting the info in a s ...
DNA History WebquestJ
DNA History WebquestJ

... http://www.dnai.org/timeline/index.html - Find Miescher on the timeline and click on the bucket with the Red Cross to watch the animation. In 1869, he extracted a substance from white blood cells that he called nuclein. What do you think he was actually extracting? ...
Biology 12 Name: DNA Functions Practice Exam
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... 1. DNA is often called the "code of life". Actually it contains the code for a) the sequence of amino acids in a protein b) the sequence of base pairs c) producing mutations d) making a recipe ...
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Ch 12: DNA and RNA

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The genetic material must show variation. Which of the following is

... The results in many more additional amino acids of the same type added in the polypeptide. The addition of these CAG repeats (due to mutation over time) would be best described as ...
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Chapter 12: Gene Structure, Replication and

... which the amino acid is transferred from its tRNA to the growing polypeptide chain. • Finally, the E (exit) site is the location at which the "empty" tRNA sits before being released back into the cytoplasm to bind another amino acid and repeat the process. ...
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DNA replication



DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance. DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.In a cell, DNA replication begins at specific locations, or origins of replication, in the genome. Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bidirectional from the origin. A number of proteins are associated with the replication fork which helps in terms of the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new DNA by adding complementary nucleotides to the template strand.DNA replication can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to initiate DNA synthesis at known sequences in a template DNA molecule. The polymerase chain reaction (PCR), a common laboratory technique, cyclically applies such artificial synthesis to amplify a specific target DNA fragment from a pool of DNA.
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