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TLS Online TPP Program

#Question id: 34081

Which of the following are true about the peptidoglycan layer in bacterial cell walls?

#XL - S Microbiology
  1. It is thicker in Gram-negative bacteria than in Gram-positive bacteria
  2. It contains N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)
  3. It is composed of glycan strands cross-linked by peptides
  4. It is absent in Mycoplasma species
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TLS Online TPP Program

#Question id: 2124

#XL - T Zoology

An integral membrane protein can be extracted with:
TLS Online TPP Program

#Question id: 10958

#XL - T Zoology

Which of the following would be appropriate therapy for massive pulmonary embolism?
TLS Online TPP Program

#Question id: 11600

#XL - R Botany

The first plant gibberellin to be identified was___
TLS Online TPP Program

#Question id: 1091

#XL - Q Biochemistry

Why does testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affect only target cells?
TLS Online TPP Program

#Question id: 4632

#XL - S Microbiology

Which of these conditions should completely prevent the occurrence of natural selection in a population over time?