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Protein Synthesis

QuestionAnswer
Transcription DNA code copied int RNA code
Types of RNA mRNA,tRNA,rRNA
Messenger RNA carries code from DNA into the cytoplasm
Transfer RNA shaped like cloverleaf, carries amino acids to mRNA at ribosome
Ribosomal RNA composes the ribosome, formed in nucleolus
Initiation beginning of transcription, occurs at the promoter region
RNA polymerase recognizes and binds DNA at promoter region, adds nucleotides to RNA chain, pries 2 strands of DNA apart
Elongation RNA nucleotides attached to template according to base pairing rules.
transcription unit stretch of DNA that is transcribed into mRNA
codons triplet base pairs along transcription unit, ex- AAU, CGA
Termination final stage of transcription,termonal sequence or stop codon, mRNA cut free from DNA template
RNA Processing 5' cap and 3' tail added to mRNA strand before leaving nucleus. introns removed
snRNP assist in the rmoval of introns during RNA processing
introns non coding sequences of mRNA
exons coding sequences of mRNA
Translation codons of mRNA are changed into amino acids by tRNA
aminoacyl-tRNA synthestase amino acid specific enzyme used to join amino acids to tRNA
initiation, elongation, termination 3 stages of translation
Created by: adcteacher
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