Section 3
Help!
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| Name the three main differences between DNA and RNA | the sugar in RNA is ribose rather that deoxyribose, RNA is generally single stranded, RNA contains uracil in place of thymine
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| the assembly of amino acids into proteins is controlled by _______ | RNA
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| name the three main types of RNA | messenger, ribosomal, transfer
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| RNA molecules that carry copies of instructions for assembling amino acids into proteins are ________ | messenger RNA (mRNA)
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| located in ribosomes and serves to assist transcription of mRNA | ribosomal RNA (rRNA)
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| type of RNA molecule that transfers each amino acid to the ribosome as it is specified by coded messages in mRNA | transfer RNA (tRNA)
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| process where RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence in RNA | Transcription
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| During _________, RNA polymerase binds to DNA and separates the DNA strands. RNA polymerase then uses one strand of DNA as a template from which ________ are assembled into a strand of RNA | transcription, nucleotides
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| regions of DNA which have specific base sequence, signals in DNA that indicate to the enzyme where to bind to make RNA | promoters
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| large pieces removed from the RNA molecules transcribed from many eukaryotic genes before they become functional | introns
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| remaining portions of RNA when they are spliced back together | exons
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| consists of three consecutive nucleotides that specify a single amino acid that is to be added to the polypeptide | codon
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| the decoding of an mRNA message into a polypeptide chain(protein) is known as what? | translation
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| translation takes place on what organelle? | ribosomes
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| during _______ the cell uses information form messenger RNA to produce proteins | translation
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