Q&A

The correct answer is “b” (Lysosomes) One of the most important functions of lysosomes is “Organelle turnover.” If extra organelles are there in a…

This statement is true. Explanation: Positional cloning is a method used to identify genetic mutations, related to a disease . The diseased gene is…

The correct answer is A (Brain). Please note that 75% glucose of human body is consumed by the brain daily, via aerobic pathways. Remainder…

The correct answer is a) Ca++ Cardio-vascular physiology is somewhat different from the physiology of rest of the organs of the body. Heart contains…

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.    …

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….

Q5. Symbiotic biological nitrogen fixation takes place with the association between a plant and a nitrogen fixing prokaryote as shown in the following table:…

SECTION C (4 MARKS EACH) Q6. The following are certain facts regarding biological nitrogen fixation in plants: 1. Oxygen irreversibly inactivates nitrogenase enzyme involved…

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…