Basic Science : Kingdom Monera Kingdom Protista QUESTIONS AND ANSWERS :: part1 : 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.Extra nuclear DNA in E. coli is termed as |
| F⁺ factor |
| Sex factor |
| Episome |
| All of above |
22.Smallest cell/organism is that of |
| Vibrio |
| Bacillus |
| Mycoplasma |
| Rhizobium |
23.Streptococcus lactis is responsible for |
| Conversion of molasses into alcohol |
| Conversion of milk into curd |
| Tanning of leather |
| Flavouring the leaves of tea and tobacco |
24.The fixation of free nitrogen by bacteria in the soil is done by |
| Azotobacter |
| Nitrosomonas |
| Nitrobacter |
| Thiobacillus |
25.Bacteria differ from plants in that they do not have |
| DNA |
| RNA |
| Cell wall |
| A well defined nucleus |
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