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Home ‣ Biochemistry ‣ Genetic Regulation Prokaryotes See What Others Are Saying!
- Question
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
- Correct Answer
- the X autosome balance is 1 or greater
- 1. Where in a eukaryotic cell, DNA can be found?
Options- A. Nucleus
- B. Mitochondrion
- C. Vacuole
- D. Both (a) and (b) Discuss
- 2. The key enzyme in the regulation of fatty acid synthesis is
Options- A. acetyl CoA carboxylase
- B. AMP activated proteinkinase
- C. protein phosphatase
- D. none of these Discuss
- 3. How many possible orientations do spin 1/2 nuclei have when they are located in an applied magnetic field?
Options- A. 2
- B. 4
- C. 3
- D. 6 Discuss
- 4. A person suffering from phenylketonuria on consumption food containing high phenylalanine may lead to the accumulation of
Options- A. phenylalanine
- B. phenylpyruvate
- C. tyrosine
- D. isoleucine Discuss
- 5. RNA polymerase holoenzyme initiates transcription which involves
Options- A. recognition of the -10 sequence and -35 sequence
- B. recognition of the -10 sequence only
- C. recognition of the -35 sequence only
- D. none of the above Discuss
- 6. Malate-asparatate shuttle operates in
Options- A. lungs and liver
- B. heart and liver
- C. pancreas and liver
- D. none of these Discuss
- 7. The first step in translation is
Options- A. binding of the two ribosomal subunits to each other
- B. binding of mRNA to the two ribosomal subunits
- C. binding of tRNA to the small ribosomal subunit
- D. binding of mRNA to the small ribosomal subunit Discuss
- 8. In vasodilation, proper nerve signals sent to blood vessels cause
Options- A. the release of nitric oxide from endothelial cells
- B. relaxation of smooth muscle cells
- C. reduced blood pressure
- D. All of the above Discuss
- 9. The TP53 gene of chromosome 17 codes for a protein __________ .
Options- A. that plays a role in the digestive process
- B. involved in glucose transport
- C. involved in the regulation of the cell cycle
- D. that is like a white blood cell protein Discuss
- 10. The pathway of a tRNA during polypeptide elongation on the ribosome is
Options- A. A site ? P site ? E site
- B. P site ? entry site ? exit site
- C. A site ? P site ? entry site
- D. P site ? A site ? E site Discuss
More questions
Correct Answer: Both (a) and (b)
Correct Answer: acetyl CoA carboxylase
Correct Answer: 2
Correct Answer: phenylpyruvate
Correct Answer: recognition of the -10 sequence and -35 sequence
Correct Answer: heart and liver
Correct Answer: binding of mRNA to the small ribosomal subunit
Correct Answer: All of the above
Correct Answer: involved in the regulation of the cell cycle
Correct Answer: A site ? P site ? E site
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