Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 59455
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
More Questions
TLS Online TPP Program

#Question id: 18000

#XL - Q Biochemistry

Two-dimensional polyacrylamide gel electrophoresis separates the proteins on the basis of
TLS Online TPP Program

#Question id: 18001

#XL - S Microbiology

Where in an angiosperm would you find a megasporangium? 

TLS Online TPP Program

#Question id: 18001

#XL - R Botany

Where in an angiosperm would you find a megasporangium? 

TLS Online TPP Program

#Question id: 18002

#XL - S Microbiology

What is the greatest threat to plant diversity? 
TLS Online TPP Program

#Question id: 18002

#XL - R Botany

What is the greatest threat to plant diversity? 
TLS Online TPP Program

#Question id: 18003

#XL - R Botany

In a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? 
1. micropyle 2. style 
3. ovary 4. stigma