Home⇒ Medical Science⇒ Biochemistry⇒ Genetic regulation prokaryotes
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ A frameshift mutation occurs in the sigma subunit gene transcribed as part of SPOl early genes. What will be the immediate result? The bacterial host will lyse immediately [other wrong options] [Discuss in forum] |
| Q2 ⇒ Methylated gene are silent [other wrong options] [Discuss in forum] |
| Q3 ⇒ The first protein complex to bind to the TATA box is transcription factor IID [other wrong options] [Discuss in forum] |
| Q4 ⇒ Which of the following is not a transcription factor? Steroid hormones [other wrong options] [Discuss in forum] |
| Q5 ⇒ In the presence of high levels of tryptophan attenuator terminates transcription [other wrong options] [Discuss in forum] |
| Q6 ⇒ DNA is methylated at CG sequences [other wrong options] [Discuss in forum] |
| Q7 ⇒ Which of the following occur in the presence of glucose? Binding of CAP-cAMP complex to the promoter area decreases [other wrong options] [Discuss in forum] |
| Q8 ⇒ Sex lethal (sxl) in Drosophila is transcribed when the X autosome balance is 1 or greater [other wrong options] [Discuss in forum] |
| Q9 ⇒ Genes which need to be coordinately regulated but are not in operons may be regulated by common transcription factor binding domains [other wrong options] [Discuss in forum] |
| Q10 ⇒ In the presence of tryptophan in the cell, the repressor is __________ bound to both DNA and tryptophan [other wrong options] [Discuss in forum] |
| Q11 ⇒ The lac operon is transcribed in which segments? 1 [other wrong options] [Discuss in forum] |
| Q12 ⇒ Enhancers differ from promoters in that their orientation can be inverted without effect [other wrong options] [Discuss in forum] |
| Q13 ⇒ Alternate splicing of RNA transcripts is a mechanism to regulate tachykinins [other wrong options] [Discuss in forum] |
| Q14 ⇒ Transcription factors are proteins which bind DNAand initiate transcription [other wrong options] [Discuss in forum] |
| Q15 ⇒ The lac operon is translated into __________ proteins. 3 [other wrong options] [Discuss in forum] |
| Q16 ⇒ Which of the following is not part of the lac operon? I [other wrong options] [Discuss in forum] |
| Q17 ⇒ Sex determination in Drosophila involves alternate splicing [other wrong options] [Discuss in forum] |
| Q18 ⇒ Why are several structural genes regulated as a unit in bacteria? It allows coordinating regulation of genes with a common function [other wrong options] [Discuss in forum] |
| Q19 ⇒ A mutation in the tip binding site of the repressor would result in constitutive trp operon expression [other wrong options] [Discuss in forum] |
| Q20 ⇒ What are genes? All of the above [other wrong options] [Discuss in forum] |
| Or |