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is the genetic composition of a cell |
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Genotype is determined by |
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the sequence of DNA bases in its genes |
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Phenotype is determined by |
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the proteins that are made when the genes are expressed |
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The sequence of amino acids |
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determine the structure, shape and function of the protein produced |
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single strand of RNA nucleotides |
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ribose sugar, a phosphate and a base (A,C,G or U) |
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copy of the DNA code for a specific protein from the nucleus to the ribosome |
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the copying of the DNA code for a specific protein into mRNA |
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unwinds and unzips a specific section of DNA |
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RNA polymerase can only add |
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Definition
nucleotides to the 3’ end of mRNA |
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Primary Transcript of mRNA |
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the mRNA that separates from the DNA template (before splicing) |
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non-coding regions of genes (stay in the nucleus) |
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coding regions of genes (Exit the nucleus) |
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Mature Transcript of mRNA |
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formed when introns are removed from the primary transcript and exons are spliced together |
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The mature transcript of mRNA moves from |
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mRNA codons are complementary |
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to the triplet of bases on the original DNA strand |
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the triplet of bases found on tRNA |
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tRNA anticodons are complementary |
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mRNA codons UAA, UAG and UGA |
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do not code for amino acids but they act as STOP codons |
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one binding site for mRNA and three binding sites for tRNA |
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a string of ribosomes carrying out multiple translation on the same mRNA strand |
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Post-translation modifications |
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may be required to enable a protein to perform its specific function |
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Post translation modifications include |
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Definition
cutting or combining a polypeptide chain, adding a carbohydrate or phosphate |
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