Discussion
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- Question
In DNA double helix, the two DNA chains are held together by
Options- A. covalent bonds between the pair of bases
- B. hydrogen bonds between the pair of bases
- C. ionic bonds between the pair of bases
- D. none of the above
- Correct Answer
- hydrogen bonds between the pair of bases
- 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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