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- Question
The competitive immunoassay can be used
Options- A. to detect very small amounts of antigen
- B. to detect antibody associated with allergies (IgE)
- C. both (a) and (b)
- D. commonly to detect trace amounts of drugs.
- Correct Answer
- both (a) and (b)
- 1. In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?
Options- A. Remains same
- B. Increases
- C. Decreases
- D. Can not be compared Discuss
- 2. The primary reason for AIDS, a deadly disease is that it
Options- A. is caused by a virus
- B. is caused by a bacterium
- C. destroys key components of the body's internal defense system
- D. causes a breakdown of the body's inflammatory response Discuss
- 3. What is the main damaging effect of UV radiation on DNA?
Options- A. Depurination
- B. Formation of thymine dimers
- C. Single strand break
- D. Dehydration Discuss
- 4. Which of the following is required as a component of blood hemoglobin?
Options- A. Iron
- B. Magnesium
- C. Calcium
- D. Copper Discuss
- 5. Translation in prokaryotes begins by the formation of a 30S initiation complex between the
Options- A. 30S ribosomal subunit, mRNA, initiation factors and N-fMet tRNA
- B. 30S ribosomal subunit, tRNA and initiation factors
- C. 30S ribosomal subunit and mRNA only
- D. 30S ribosomal subunit, mRNA and initiation factors Discuss
- 6. What is the approximate percentage of repetitive DNA sequences in human DNA?
Options- A. 10 to 20%
- B. 20 to 30%
- C. 30 to 40%
- D. 40 to 50% Discuss
- 7. In eukaryotes fatty acid breakdown occurs in
Options- A. mitochondrial matrix
- B. cytosol
- C. cell membrane
- D. endoplasmic reticulum Discuss
- 8. A deficiency of niacin causes
Options- A. pellagra
- B. scurvy
- C. cataract
- D. anemia Discuss
- 9. An intermediate which inhibits the activity of fructose 1,6 diphos-phatase would inhibit
Options- A. glycolysis
- B. pyrolysis
- C. gluconeogenesis
- D. none of these Discuss
- 10. The lac operon is transcribed in which segments?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
More questions
Correct Answer: Increases
Correct Answer: destroys key components of the body's internal defense system
Correct Answer: Formation of thymine dimers
Correct Answer: Iron
Correct Answer: 30S ribosomal subunit, mRNA, initiation factors and N-fMet tRNA
Correct Answer: 20 to 30%
Correct Answer: mitochondrial matrix
Correct Answer: pellagra
Correct Answer: gluconeogenesis
Correct Answer: 1
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