Related InterviewSolutions

• What type of nutrition found in purple and green sulphur bacteriaA. PhotoautotrophicB. ChemoautotrophicC. PhotoheterotrophicD. Saprotrophic
• The bacterium which reduces the fertility of soil isA. NitrosomonasB. Bacillus denitrificansC. Azotobacter sp.D. Nitrobacter.
• Fertility of paddy fields is improved by addition ofA. RhizobiaB. GypsumC. Sodium sulphateD. Blue- Green Algea
• Blue green algae used in rice fields to increase fertility isA. RivulariaB. NostocC. AulosiraD. Anabaena.
• Which one causes food poisoningA. AzotobacterB. NitrosomonasC. NitrobacterD. Clostridium botulinum.
• Bacteria have incipient nucleus (nucleoid ) and hence they are placed inA. ProkaryotaB. EukaryotaC. FungiD. Protista.
• Blast of Rice is caused byA. XanthomonasB. PseudomonasC. PhytophthoraD. Gibberella.
• Nostoc fixes nitrogen in the symbiotic association of the following 1. Alnus 2. Gunnera 3. Anthoceros 4. Casuarina. The correct combination isA. 1 and 2B. 1 and 3C. 1 and 4D. 2 and 3.
• Select the correct match `|{:(A.,"Nitrosomonas",-,"Nitrite to nitrate"),(B.,"Thiobacillus",-,"Denitrification"),(C.,"Nostoc",-,"Free-living nitrogen-fixer"),(D.,"Azotobacter",-,"Anaerobic nitrogen-fixer"):}|`A. (a)-(ii), (b)-(iv),(c )-(iii),(d)-(i)B. (a)-(iii),(b)-(iv),(c )-(ii),(d)-(i)C. (a)-(iv),(b)-(ii),(c )-(i),(d)-(iii)D. (a)-(i),(b)-(ii),( c)-(iii),(d)-(iv)
• Nucleoid isA. Extrachromosomal genetic materialB. Nuclear material of VolvoxC. Nuclear material in bacteriaD. Extrachromosomal DNA in bacteria.