Question: Methylated gene are [A]. active [B]. silent [C]. dynamic [D]. either (a) or (b) Answer: Option B Explanation: No answer description available for this question.

Question: Genes which need to be coordinately regulated but are not in operons may be regulated by [A]. common transcription factor binding domains [B]. TATA boxes [C]. CAAT regions [D]. GC regions Answer: Option A Explanation: No answer description available…

Question: DNA is methylated at [A]. AC sequences [B]. TATA sequences [C]. CAAT sequences [D]. CG sequences Answer: Option D Explanation: No answer description available for this question.

Question: Alternate splicing of RNA transcripts is a mechanism to regulate [A]. tubulin [B]. tachykinins [C]. DNA methylation [D]. leucine zippers Answer: Option B Explanation: No answer description available for this question.

Question: Enhancers differ from promoters in that [A]. they initiate transcription [B]. they are adjacent to the start codon [C]. their orientation can be inverted without effect [D]. they are restricted to a specific gene Answer: Option C Explanation: No…

Question: A frameshift mutation occurs in the sigma subunit gene transcribed as part of SPOl early genes. What will be the immediate result? [A]. Early genes will not be translated [B]. Middle genes will not be transcribed [C]. The bacterial…

Question: In the presence of high levels of tryptophan [A]. attenuator allows transcription of trp structural genes [B]. attenuator propogates transcription [C]. attenuator terminates transcription [D]. none of the above Answer: Option C Explanation: No answer description available for this…

Question: A mutation in the tip binding site of the repressor would result in [A]. constitutive trp operon expression [B]. inducible trp operon expression [C]. no operon expression [D]. none of the above Answer: Option A Explanation: No answer description…

Question: In the presence of tryptophan in the cell, the repressor is __________ [A]. bound to tryptophan [B]. bound to DNA [C]. bound to both DNA and tryptophan [D]. bound to neither tryptophan nor DNA Answer: Option C Explanation: No…

Question: Which of the following occur in the presence of glucose? [A]. lac Z gene expression is increased [B]. cAMP increases [C]. Binding of CAP-cAMP complex to the promoter area decreases [D]. none of the above Answer: Option C Explanation:…