Ap Biology- Chapter 17 Vocabulary

Front 1

transcription

Back 1

the synthesis of RNA on a DNA template

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messenger Rna(mRNA)

Back 2

a type of rna, synthesized from dna, that attaches to ribosomes in the cytoplasm and specifies the primary structure of a protein

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translation

Back 3

synthesis of a polypeptide using the genetic info encodede in a mRNA molecule. there is a change of "language" from the nucleotides to amino acids

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ribosomes

Back 4

organelle-site of protein synthesis

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RNA processing

Back 5

modification of RNA before it leaves the nucleus, a process unique to eukaryotes

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primary transcript

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initial rna transcript, also called pre-mRNA when transcrribed from a protein-coding gene

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tripled code

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a set of 3 nucleotide long words the specify the amino acids for polypeptide chains

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template strand

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DNA strand that provides the template for ordering the sequence of nucleotides in a RNA sequence

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reading frame

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the way a cell's mrna translating machinery groups the mrna nucleotides into codons

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RNA Polymerase

Back 10

an enzyme that links together the growing chaing of ribonucleotides during transcription