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प्रश्न
Answer the following question based on Meselson and Stahl's experiment on E. coli :
Write the name of the chemical substance used as the only source of nitrogen in the experiment.
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उत्तर
NH4Cl was used as the only source of nitrogen in the experiment.
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संबंधित प्रश्न
Give the microbial source of Vit. B12
Give the names and functions of enzymes involved in lactose metabolism in E. Coli.
What is referred to as industrial alcohol? Briefly describe its preparation.
Which of the following involves the distillation process?
Identify the organism used in production of alcohol.
From the following identify the WRONG statements.
i. All enzymes are composed of proteins.
ii. All proteins are enzymes.
iii. Some hormones are proteins.
iv. Some nucleic acid also acts as enzymes.
v. All enzymes are inorganic in nature.
vi. Enzymes are biocatalysts.
Match Column I (Antibiotic) with Column II (Microbial Sources) and select the correct option.
| Column I | Column II | ||
| i. | Chloromycetin | a. | Streptomyces erytreus |
| ii. | Erythromycin | b. | Streptomyces venezuelae |
| iii. | Bacitracin | c. | Streptomyces aureofaciens |
| iv. | Terramycin | d. | bacillus licheniformis |
Which raw material is used in the fermentation processes of making beer?
Why is distillation required for producing certain alcoholic drinks?
Why are some molecules called bioactive molecules?
