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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: 14607

#Section 2: General Biology

The cell wall of Gram-positive bacteria
TLS Online TPP Program

#Question id: 15912

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

Match the items in Group 1 with an appropriate description in Group 2

Group 1                                                    Group 2

P. PSI-BLAST                                    1. ungapped, aligned motif

Q. CLUSTALW                                 2. Profiles

R. BLOCK                                         3. Heuristic method

S. FASTA                                           4. Multiple sequence alignment
TLS Online TPP Program

#Question id: 3621

#Section 3: Genetics, Cellular and Molecular Biology

This is the genotype of blood group A
TLS Online TPP Program

#Question id: 4823

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

Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?
TLS Online TPP Program

#Question id: 27201

#Section 5: Bioprocess Engineering and Process Biotechnology

The rate constant of a radioactive substance is 4 years -1. The value of half-life will be: