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Vocab 12-3
Gene, Messenger RNA, ribosomal RNA, Transfer RNA, Transcription, RNA Polymerase, Promoter, Intron, Exon, Codon, Anti-Codon, and Translation
12
Biology
9th Grade
02/21/2009

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Term
Gene
Definition
Sequence of DNA coded for a protein, and determines a trait.
Term
Messenger RNA
Definition
RNA molecules that carry copies of instructions.
Term
Ribosomal RNA
Definition
Made up of several dozen proteins.
Term
Transfer RNA
Definition
Transfers amino acids to the ribosomes as instructed to do so by the mRNA.
Term
Transcription
Definition
Process when part of a nucleotide in DNA is copied to RNA.
Term
RNA Polymerase
Definition
Enzyme that binds to DNA and seperates the DNA strands during transcription.
Term
Promoter
Definition
Region of DNA that indicates where to make RNA.
Term
Intron
Definition
Sequence of DNA that is NOT involved in coding for protein.
Term
Exon
Definition
Codes for a protein.
Term
Codon
Definition
Three nucleotides that are coded for a SINGLE amino acid.
Term
Anti-Codon
Definition
Group of three bases on tRNA that are complementary to mRNA
Term
Translation
Definition
Decoding of an mRNA into a polypeptide chain.
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