Which bacterial cell structure plays a crucial role in conjugation, facilitating genetic exchange?
Flagella
Pili
Fimbriae
Capsule
Related Questions
Which of the following is NOT a type of archaebacteria?
Cyanobacteria
Methanogens
Halophiles
Thermoacidophiles
Curing of tea is brought about by the activity of
Bacteria
Mycorrhiza
Viruses
Fungi
Analyse the following statements regarding cyanobacteria and identify the correct option given below
I. The cyanobacteria are unicellular, colonial or filamentous, marine or terrestrial algae
II. The colonies of cyanobacteria are generally surrounded by gelatinous sheath
Codes
Only I
Only II
I and II
None of these
Which of the following bacteria fixes nitrogen without any plant association?
Rhizobium
Nostoc
Anabaena
Azotobacter
Heating milk at 65°C followed by sudden cooling is known as
Sterilization
Preservation
Pasteurization
Fermentation
Plasmids are mostly found in
Virus
Bacteria
Fungi
Viroid
Which of the following is a nitrogen fixing organism?
BGA
Rhizobium
Both (1)and (2)
Agaricus
Pasteurization is
Heating of liquid at 65°C
Heating of liquid between 65°C to 80°C followed by rapid cooling
Heating of solid at 65°C
None of the above
The rumen of ruminant animals provides a suitable environment for which type of prokaryotes involved in biogas production?
Methanogens
Cyanobacteria
Actinomycetes
Spirochetes
Pasteurization is
Heating of liquid at 65°C
Heating of liquid between 65°C to 80°C followed by rapid cooling
Heating of solid at 65°C
None of the above
