TLS Online TPP Program

#Question id: 3041


Which statement about gram-negative bacteria is correct?

#Section 2: General Biology
  1.  Penicillins are the best antibiotics to use against them.

  2. They often possess an outer membrane containing toxic lipopolysaccharides.

  3. Their chromosomes are composed of DNA tightly wrapped around large amounts of histone proteins.

  4. Their cell walls are primarily composed of peptidoglycan.

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TLS Online TPP Program

#Question id: 15482

#Section 6: Plant, Animal and Microbial Biotechnology

Over expression of primary metabolites are often achieved by
1. Frequency of RNA polymerase binding to the promoter region
2. Copy number increase of structural genes for these enzymes by genetic engineering
3. Chemically derived protein
Which combination below represent correct option?

TLS Online TPP Program

#Question id: 15483

#Section 6: Plant, Animal and Microbial Biotechnology

A novel technique for strain improvement combining the advantage of multi-parental crossing allowed by DNA shuffling with the recombination of entire genomes.

TLS Online TPP Program

#Question id: 15483

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

A novel technique for strain improvement combining the advantage of multi-parental crossing allowed by DNA shuffling with the recombination of entire genomes.

TLS Online TPP Program

#Question id: 15484

#Section 6: Plant, Animal and Microbial Biotechnology

Microbial process produces l-form of amino acids which makes the process advantageous as compared to synthetic processes. Strains employed for amino acid 1. 1. 1. production are 
1. wild-type strains 
2. auxotrophic mutants
3. regulatory mutants
4. auxotrophic regulatory mutants
Which of the following combination has correct options

TLS Online TPP Program

#Question id: 15485

#Section 6: Plant, Animal and Microbial Biotechnology

Plasmid vector systems for cloning in which bacteria have been established, for amino acid production and related strains.
A. Corynebacterium
B. Micrococcus, 
C. Brevibacterium, 
D. Microbacterium
Choose the correct option.

TLS Online TPP Program

#Question id: 15486

#Section 6: Plant, Animal and Microbial Biotechnology

Why glutamic acid accumulation in cell is not a good idea for Corynebacterium