1. Differentiate between synthetic and complex medium used for microbial culture. [2]
2. How does the metagenomics approach help to identify novel genes present in the environment? Explain the process. [3]
3. Write the steps involved in microbial strain isolation. How can the presence of a particular strain be confirmed? [5]
4. Differentiate between three types of microbial culture,along with well defined graphs for them. [5]
5. Foaming is a problem in most microbiological processes. Mention any two possible causes of this problem? How can it be controlled? [2]
6. If a culture of Haemophilus contains 10 raise to the power 5 cells/ml at 4:00 a.m. and 10 raise to the power11 cells/ml at 4:00 p.m., calculate its specific growth rate and doubling time. Which growth phase in this bacterial culture will show maximum specific growth rate? [3]
7. Rohan cultured streptococcus bacteria in his lab to check whether it is gram positive or negative and then he threw the culture directly in dustbin. Is this method of disposal ethically and ecologically safe?[2]
No comments:
Post a Comment