a) DNA fragment with instructions b) code c) is transcribed but not translated d) non-coding e) sometimes encoding sometimes not gene, 5' UTR, exon, intron, ATTATT

introns: A)are parts of the new strand replaced with DNA nucleotides during replication B)Are joined together with other introns to make the mature mRNA C)are found in prokaryotic cells D)are binding sites for repressors; therefore introns are involved in controlling gene expression E)do not contain codons or information about proteins; they are removed from the mRNA during splicing/editing of mRNA

Which of the following would be present in a genome but not the transcriptome? (Select all) A) Introns B) Exons C) PolyA tail D) Promoter

Which of the following is RNA-dependent RNA polymerase?a) Reverse transcriptaseb) RNA polymerase Ic) RNA polymerase IId) RNA replicase