Please answer all the questions below. Nar 23. During the lysogenic cycle of bac

Question

Please answer all the questions below. Nar 23. During the lysogenic cycle of bacteriophage replication, a. The cl gene is highly expressed. b. The cro gene is repressed c. Phage DNA integrates into the host chromosome. d. Active phage reproduction and release are inhibited All of the above. e. 24. Whole plasmids can be transferred between bacterial cells through cytoplasmic connections during a. Conjugation. b. Transduction c. Transformation d. Transposition. e. Caffeine addiction. 25. Stability of a eukaryotic mRNA is directly related to its modification with a(n) a. Long poly-A tail. b. Methylated GTP cap. c. Set of spliced exons. d. Removal of any introns e. Early morning stop at the nearest Starbucks. @ 26. Transcription of eukaryotic genes requires a. Addition of multiple adenines to the 3' end b. Binding of several transcription factors. c. Interaction of activator proteins and enhancer sequences d. Recognition of a TATA sequence by TFIID. e. All of the above. 27. Which of the following sequences represents gene regulation from MOST to LEAST energy-"expensive"? a. Posttranscriptional> Translational > Transcriptional> Posttranslational b. Posttranslational> Posttranscriptional> Transcriptional>Translational c. Posttranslational> Translational Posttranscriptional> Transcriptional d. Translational > Posttranscriptional > Posttranslational> Transcriptional e. Transcriptional> Translational > Posttranscriptional> Posttranslational 28. Eukaryotic genes do NOT produce a. Multiple proteins from one mRNA b. Multiple RNA copies from one gene c. Primary transcripts with introns d. Methyl-GTP capped transcripts e. Exons within mature mRNAs

Explanation / Answer

23.c

24.a

25.a

26.e

27.d

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