In Whittaker’s system of classification prokaryotes are placed in the kingdom
Protista
Monera
Plantae
Animalia
Plasmid is
Fungus
Plastid
Part of plasma membrane
Extrachromosomal DNA in bacterial cell
Which of the following groups of organisms are ecologically similar ?
Producer protests and consumer protests
Monerans and producer protests
Consumer protests and fungi
Monerans and fungi
Which of the following is a Gram negative bacterium ?
Escherichia coli
Bacillus subtillis
Streptomyces coelicolor
Ampycolatopsis orientalis
Gene regulation in bacteria is shown by
Jacob and Monod
Beadle and Tatum
Temin and Baltimore
Kornberg
Assign the followingn substances to the cell wall, flagella, ‘S’ layer and pilli of bacteria in correct sequence
1. Glycoprotein II Fimbrilin
III Teichoic acid IV. Flagellin
The correct answer is
III, I, IV, II
III, IV, III, I.
II, IV, III, I
III, IV, II, I
In microbial genetics, which one is referred to as Griffith effect?
Conjugation
Transduction
Transformation
Sexduction
In which kingdom, would you classify the archaea and nitrogen-fixing organisms, if the five kingdom system of classification is used
Fungi
Maximum number of antibiotics are obtained from
Bacteria
Virus
Plants
Which one of the following combinations of microbes is responsible for the formation and flavour of yoghurt ?
Lactobacillus casei and Streptococcus thermophillus
Rhizobium meliloti and Azotobactor sp
Edoboiquerilluers reburn and Sciencealla typhosa
Bacillus subtilis and Escherichia coli