Basic Science : Kingdom Monera Kingdom Protista QUESTIONS AND ANSWERS :: part6 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.In photosynthetic bacteria, the pigments occur in |
| Chloroplasts |
| Chromatoplasts |
| Chromatophores |
| Leucoplasts |
22.If bacteria and fungi are destroyed |
| Antibiotics will disappear |
| Living beings will becomes immortal |
| Earth will become packed with excretions and dead bodies |
| The soil will be depleted of nitrogen |
23.Nitrogen fixing organism which can be free as well as symbiotic is |
| Anabaena |
| Azotobacter |
| Liverworts |
| Mosses |
24.Plasmid is |
| Small extrachromosomal circular self replicating DNA that can carry genes into host organism |
| Bacteriophage |
| DNA found in mitochondria |
| DNA incorporated in bacterial chromosome |
25.Nitrosomonas changes |
| Nitrite to nitrate |
| Nitrogen to ammonia |
| Ammonia to nitrogen |
| Ammonia to nitrite |
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