Kingdom Monera Kingdom Protista - Questions & Answers | Exam2Win

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76. If bacteria and fungi are destroyed

A. Antibiotics will disappear

B. Living beings will becomes immortal

C. Earth will become packed with excretions and dead bodies

D. The soil will be depleted of nitrogen

Explanation:

77. Nitrogen fixing organism which can be free as well as symbiotic is

A. Anabaena

B. Azotobacter

C. Liverworts

D. Mosses

Explanation:

78. Plasmid is

A. Small extrachromosomal circular self replicating DNA that can carry genes into host organism

B. Bacteriophage

C. DNA found in mitochondria

D. DNA incorporated in bacterial chromosome

Explanation:

79. Bacteria which retain purple colour after staining with Gram stain is

A. Gram + ve

B. Gram - ve

C. Trichous

D. Spirillum

Explanation:

80. Nitrosomonas changes

A. Nitrite to nitrate

B. Nitrogen to ammonia

C. Ammonia to nitrogen

D. Ammonia to nitrite

Explanation: