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Chapter 10
Section 4
| Term | Definition |
|---|---|
| a natural polymer that is present in all living cells and that plays a role in protein synthesis | ribonucleic acid (RNA) |
| the process of forming a nucleic acid by using another molecule as a template; particularly the process of synthesizing RNA by using one strand of a DNA molecule as a template | transcription |
| the portion of protein synthesis that takes place at ribosomes and that uses the codons in mRNA molecules to specify the sequence of amino acids in polypeptide chains | translation |
| the formation of proteins by using information contained in DNA and carried by mRNA | protein synthesis |
| a five-carbon sugar present in RNA | ribose |
| a single-stranded RNA molecule that encodes the information to make a protein | messenger RNA (mRNA) |
| an organelle that contains most of the RNA in the cell and that is responsible for ribosome function | ribosomal RNA (rRNA) |
| an RNA molecule that transfers amino acids to the growing end of a polypeptide chain during translation | transfer RNA (tRNA) |
| an enzyme that starts (catalyzes)the formation of RNA by using a strand of a DNA molecule as a template | RNA polymerase |
| a nucleotide sequence on a DNA molecule to which an RNA polymerase molecule binds, which initiates the transcription of a specific gene | promoter |
| a specific sequence of nucleotides that marks the end of a gene | termination signal |
| the rule that describes how a sequence of nucleotides, read in groups of three consecutive nucleotides (triplets) that correspond to specific amino acids, specifies the amino acid sequence of a protein | genetic code |
| in DNA, a three-nucleotide sequence that encodes an amino acid or signifies a start signal or a stop signal | codon |
| a region of tRNA that consists of three bases complemtary to the codon of mRNA | anticodon |
| the complete genetic material contained in an individual | genome |