Who first used the term 'antibiotic'?
Fleming
Pasteur
Waksman
Lister
Temperature tolerance of thermophile blue green algae is due to:
Cell wall structure
Cell organization
Mitochondrial structure
Homo polar bonds in their proteins
Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis?
Neomycin
Streptomycin
Tetracycline
Erythromycin
Transfer of genetic information from one bacterium to another in the transduction process is through:
Conjugation
Bacteriophage released from the donor bacterial strain
Another bacterium
Physical contact between donor and recipient strain
The major component of bacterial cell wall is a polymer called:
Xylan
Chitin
Cellulose
Peptidoglycan
Which one of the following statements about viruses is correct?
Nucleic acid of viruses is known as capsid
Viruses possess their own metabolic system
All viruses contain both RNA and DNA
Viruses are obligate parasites.
Macronucleus and micronucleus are the characteristic feature of:
Paramecium and Vorticella
Amoeba and Nyctotherus
Hydra and Ballantidium
Vorticella and Nyctotherus
Amoebiasis can be prevented by:
Eating balanced food
Eating plenty of fruits
Drinking boiled water
Using mosquito nets
Which of the following statements is correct about the structure of cell walls of fungi and bacteria?
Both have mucopeptide
Both are made up of carbohydrates
Both are made up of cellulose
Both are made up of n-acetylglucosamine
Which of the following protozoa contains chlorophyll?
Amoeba
Euglena
Paramecium
Trypanosoma
