Discussion
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- Question
What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample?
Options- A. Spin - lattice relaxation
- B. Spin - spin relaxation
- C. Spin - spin - spin relaxation
- D. None of these
- Correct Answer
- Spin - lattice relaxation
- 1. Codon that specify the amino acids often differs in the
Options- A. first base
- B. second base
- C. third base
- D. none of these Discuss
- 2. There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?
Options- A. One
- B. About 100
- C. Thousands and tens of thousands
- D. none of these Discuss
- 3. Radial Immunodiffusion is similar to
Options- A. double-diffusion
- B. gel diffusion
- C. Ouchterloney technique
- D. all of these Discuss
- 4. Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?
Options- A. In vitro synthesis of a polypeptide using UUUUU
- B. Labeled peptide binding to a ribosome
- C. Mixed co-polymer mRNA synthesis
- D. none of the above Discuss
- 5. How many bases of nucleic acid determine a single amino acid?
Options- A. Four
- B. One
- C. Two
- D. Three Discuss
- 6. Atherosclerosis can cause blood
Options- A. thinning
- B. clotting
- C. thickening
- D. none of these Discuss
- 7. Which species lack immunoglobulin light chains?
Options- A. Camels
- B. Humans
- C. cows
- D. Buffalo Discuss
- 8. DNA- footprinting is a suitable technique for identifying which of the following?
Options- A. Particular mRNA in mixture
- B. Particular t-RNA in mixture
- C. Introns within DNA
- D. Protein binding site within DNA Discuss
- 9. Methylated gene are
Options- A. active
- B. silent
- C. dynamic
- D. either (a) or (b) Discuss
- 10. The most stabilizing force for nucleic acids is
Options- A. hydrogen bonds
- B. electrostatic bond
- C. Van der Waals
- D. conformational entropy Discuss
More questions
Correct Answer: third base
Correct Answer: Thousands and tens of thousands
Correct Answer: double-diffusion
Correct Answer: In vitro synthesis of a polypeptide using UUUUU
Correct Answer: Three
Correct Answer: clotting
Correct Answer: Camels
Correct Answer: Protein binding site within DNA
Correct Answer: silent
Correct Answer: Van der Waals
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