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Gene Expression

Chapter 3 - A & P Lecture

QuestionAnswer
definition of gene? DNA segment coding for RNA or protein
two steps of gene expression? transcription and translation
where does transcription occur? nucleus
enzyme used in transcription? RNA polymerase
base pairing rules in RNA? A-U, C-G
introns vs exons? introns removed, exons expressed
what is alternative splicing? different exon combination ---> different proteins
purpose of cap and poly- A tail? stability and ribosome binding
start codon? AUG
stop codons? UAA, UAG, UGA
role of tRNA carries amino acids
 

 



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