NITROGEN CYCLE Nitrogen cycle includes the process of uptake of nitrogen from the environment, its usage by various plants, and returning it back to…
QUESTION NO. ANSWER 1. …
Once my teacher told me, there is no entrance exam in the world; related to life sciences; where a question on nitrogen cycle is…
SECTION A: (2 MARKS EACH) Q1. If a 4 digit year (e.g. 1927) is chosen randomly, what is the probability that it is not…
Q2. Find the missing number in the sequence 61, 52, 63, 94, _____, 18, 001, 121 A. 46 B. 70 C. 66 D. 44…
SECTION B (2 MARKS EACH) Q3. The most ancient mode of energy generating metabolic reactions are: A. Photosynthesis B. Oxidation of nitrate C. Reduction…
Q4. Location of Glutamate synthatase, an important enzyme in nitrogen assimilation is A. only cytoplasm B. only chloroplast C. both cytoplasm and chloroplast D….
SECTION C (4 MARKS EACH) Q6. The following are certain facts regarding biological nitrogen fixation in plants: 1. Oxygen irreversibly inactivates nitrogenase enzyme involved…
Q5. Symbiotic biological nitrogen fixation takes place with the association between a plant and a nitrogen fixing prokaryote as shown in the following table:…
Q7. Match the following associations involved in dinitrogen fixation with their representative genera: Associations
Q8. The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given…
Q9. In the global nitrogen cycle, the following microbial organisms are involved in three important process- denitrification, nitrification and nitrogen fixation. a) Rhizobium …
Q10. Nitrogen fixation is basically a process of converting nitrogen gas into ammonia (NH3). One of the key enzymes in the process is “nitrogenase”…
Unigene Practical 4: Aim: To understand the concept of UniGene and its usage on the internet. Principle: Unigene is also a database in NCBI….
Entrez Practical 3 Aim: To learn the usage of Entrez on the web. Principle: The word Entrez means “Come in.” It is also a…
Lecture 4 Practical 2: EMBL Aim: To study the Sequence Information Resource “EMBL” on the web. Principle: Full-form of EMBL is European Molecular Biology…
Lecture 3 Practical 1: GenBank Aim: To study the “Sequence Information Resource” GenBank on the web. Principle: GenBank is a primary sequence repository. This…