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Cell
Protein Synthesis
13
Biology
Undergraduate 2
03/05/2018

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Term
Gene
Definition
Section of DNA that has a unique sequence to make one polypeptide chain.
Term
messenger RNA (mRNA)
Definition
Carries instructions from the DNA to ribosomes for making a polypeptide chain .
Term
ribosomal RNA (rRNA)
Definition
Structural component of RNA.
Term
transfer RNA (tRNA)
Definition
Decodes the message from mRNA to make protein.
Term
Transcription
Definition
Information from DNA becomes encoded or changed into mRNA.
Term
3 Phases of Transcription
Definition
Initiation, Elongation, Termination.
Term
Initiation
Definition
RNA polymerase pulls apart DNA for transcription to begin at promotor site.
Term
Elongation
Definition
RNA polymerase (1) aligns RNA nucleotides with complementary DNA (2) unwinds DNA in front and rewinds behind.
Term
Termination
Definition
Ends when pre-mRNA reaches terminal signal (specific base sequence) and separates from DNA.
Term
Translation
Definition
Information from mRNA is decoded to make an amino acid.
Term
Genetic Code
Definition
The base sequence of a gene and translated into an amino acid.
Term
Codon
Definition
Corresponding three-base sequence on mRNA transcribed from DNA and used to make an amino acid.
Term
Anticodon
Definition
three-base sequence on the tRNA that binds to the mRNA codon.
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