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- Question
Organisms with complex life cycles which include a mammalian host and an insect host and involves schizogony as part of the cycle belong to which phylum of Protozoa?
Options- A. Sarcomastigophora
- B. Microspora
- C. Apicomplexa
- D. Myxozoa
- Correct Answer
- Apicomplexa
- 1. The interaction between the mRNA and tRNA determined the position of amino acid in a polypeptide sequence. This is called the
Options- A. stagerivity
- B. Wobble hypothesis
- C. promiscuity
- D. adaptor hypothesis Discuss
- 2. Which of the following may be most likely to be missing from a gram-positive bacterium?
Options- A. Penicillin binding protein
- B. Peptidoglycan
- C. Lipopolysaccharide
- D. Phospholipid bilayer membrane Discuss
- 3. The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called
Options- A. vitropexis
- B. viropexis
- C. ectodesmata
- D. vivopexis Discuss
- 4. B. flavum strain can be used for the production of
Options- A. L-Threonine
- B. L-Proline
- C. L-Isoleucine and L-Histidine
- D. All of the above Discuss
- 5. Proofreading activity to maintain the fidelity of DNA synthesis
Options- A. occurs after the synthesis has been completed
- B. is a function of the 3'-5' exonuclease activity of the DNA polymerases
- C. requires the presence of an enzyme separate from the DNA polymerases
- D. occurs in prokaryotes but not eukaryotes Discuss
- 6. Reverse transcriptase is a useful enzyme to have when
Options- A. an RNA virus converts its RNA to DNA
- B. there are no host cells present
- C. nutrients are scarce
- D. spikes are forming in the new virus Discuss
- 7. Clostridium botulinum food poisoning is due to
Options- A. invasion of bacteria in the intestine
- B. preformed toxin
- C. both (a) and (b)
- D. none of the above Discuss
- 8. Which of the following organism is utilized to obtain commercial L-lysine by direct method?
Options- A. Micrococcus glutamicus
- B. Mutated strain of Micrococcus glutamicus
- C. Brevibacterium aminogenes
- D. Mutated strain of Brevibacterium aminogenes Discuss
- 9. Differentiation of four different bases in automated sequencing systems is that each base has
Options- A. different radioactive tag
- B. cytosine at start
- C. unique antibody bound to it
- D. distinctive fluorescent tag Discuss
- 10. The antibiotics not clinically useful for Pseudomonas aeruginosa infection is
Options- A. aminoglycosides
- B. ceftazidime
- C. piperacillin
- D. trimethoprim-sulphamethoxazole Discuss
More questions
Correct Answer: adaptor hypothesis
Correct Answer: Lipopolysaccharide
Correct Answer: viropexis
Correct Answer: All of the above
Correct Answer: is a function of the 3'-5' exonuclease activity of the DNA polymerases
Correct Answer: an RNA virus converts its RNA to DNA
Correct Answer: preformed toxin
Correct Answer: Mutated strain of Micrococcus glutamicus
Correct Answer: distinctive fluorescent tag
Correct Answer: trimethoprim-sulphamethoxazole
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