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- Question
Methylated gene are
Options- A. active
- B. silent
- C. dynamic
- D. either (a) or (b)
- Correct Answer
- silent
- 1. The first protein complex to bind to the TATA box is
Options- A. transcription factor IIA
- B. transcription factor IIB
- C. transcription factor IID
- D. all of these Discuss
- 2. Protein folding is
Options- A. automatic, mediated by the protein itself
- B. mediated by other proteins called chaperones
- C. mediated by the ribosomes
- D. none of the above Discuss
- 3. Signal sequences are part of a protein that
Options- A. signal folding of the protein
- B. signal the protein synthesis on the ribosomes is ended
- C. transport proteins to other sites within the cell
- D. refold proteins in prion-associated diseases Discuss
- 4. Sickle cell disease is due to
Options- A. a mutation in the beta chain of Hb
- B. a mutation in the alpha chain of Hb
- C. infection with a parasite
- D. none of the above Discuss
- 5. Metastasis involves
Options- A. ability of cells to dissolve cellular matrix
- B. metalloprotein levels
- C. decreased levels of proteins that regulate metalloproteins
- D. all of the above Discuss
- 6. A mutation in the tip binding site of the repressor would result in
Options- A. constitutive trp operon expression
- B. inducible trp operon expression
- C. no operon expression
- D. none of the above Discuss
- 7. Which of the following is not part of the lac operon?
Options- A. I
- B. O
- C. P
- D. none of these Discuss
- 8. What are genes?
Options- A. The functional unit of inheritance
- B. A fragment of DNA
- C. A portion of a chromosome
- D. All of the above Discuss
- 9. Sex lethal (sxl) in Drosophila is transcribed when
Options- A. the X autosome balance is less than 0.5
- B. the X autosome balance is 1 or greater
- C. the X autosome balance equals 0.5
- D. none of the above Discuss
- 10. Why are several structural genes regulated as a unit in bacteria?
Options- A. An accident of evolution
- B. It allows coordinating regulation of genes with a common function
- C. The bacteria chromosome is so small; many different genes must be controlled by the same promoter
- D. none of the above Discuss
Genetic Regulation Prokaryotes problems
Search Results
Correct Answer: transcription factor IID
Correct Answer: mediated by other proteins called chaperones
Correct Answer: transport proteins to other sites within the cell
Correct Answer: a mutation in the beta chain of Hb
Correct Answer: all of the above
Correct Answer: constitutive trp operon expression
Correct Answer: I
Correct Answer: All of the above
Correct Answer: the X autosome balance is 1 or greater
Correct Answer: It allows coordinating regulation of genes with a common function
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