Q. The main structural component of virus is nucleic acidproteinnucleic acid and proteinnucleic acid or protein Answer: nucleic acid and protein

Q. A virus contains DNARNADNA or RNADNA and RNA Answer: DNA or RNA

Q. The name virus was given by … IvanowskyPasteurDienerHershey Answer: Pasteur

Q. Viroids were discovered by … DienerWoesePasteurIyengar Answer: Diener

Q. Prokaryotes are included in the kingdom …. MoneraProtistaProtozoaBasidiomycetes Answer: Monera

Q. By how many criteria ,living organisms have been classified into five kingdom. TwoFourfiveThree Answer: Four

Q. Halophiles is also called ….. EubacteriaActinomyceCyanobacteriaArchaebacteria Answer: Archaebacteria

Q. Which of the following is included in five kingdom classification? Monera, Protista, Animalia, Plantae, AlgaeMonera,Protista,Fungi,Animalia,PlantaeVirus,prokaryotes,Fungi,Plantae,AnimaliaAlgae,Fungi,Bryophyta,Pteridophyta,Gymnosperms Answer: Monera,Protista,Fungi,Animalia,Plantae

Q. The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of (Mains 2011) Ascaris, a roundwormRhizopus, a mouldWuchereria, a filarial wormTaenia, a tapeworm Answer: Rhizopus, a mould

Q. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorized as cyanobacteriaarchaebacteriachemosynthetic autotrophsheterotrophic bacteria Answer: heterotrophic bacteria

Q. A capsule is advantageous to a bacterium because it protects the bacterium from desiccationit protects means of locomotionit allows the bacterium to “hide” from the host’s immune systemit allows the bacterium to attach to the surface Answer: it allows the bacterium to “hide” from the ...

Q. The imperfect fungi that are decomposers of litter and help in mineral cycling belong to PhycomycetesAscomycetesDeuteromycetesBasidiomycetes Answer: Deuteromycetes