Question Set 4

1. Reserpine is obtained from which plant? 1
2. When is World Environment Day celebrated? 1
3. When and where was the Earth Summit to save biodiversity held? 1
4. Which scientist has told about 7 million species in the world’s ethnic diversity? 1
5. What is Humboldt’s equation of species area relationship? 1
6. Which protein is obtained from the Cry gene of Bacillus thuringinesis which is known as Bt toxin? 1
7. What is satellite DNA? 1
8. By whom was the rivet popper hypothesis given? 1
9. For which work did Hargobind Khurana received the Nobel Prize? 1
10. Human protein alpha-1 antitrypsin is used in the diagnosis of which disease? 1
11. A) When there is a small number of bacteria or viruses is present, when the symptoms of the disease are not clearly visible, how can they be diagnosed?
B) Which human protein is found in the milk of a transgenic cow ‘Rosy? 1+1 = 2
12. Give one advantage and one disadvantage of production of genetically modified crops. 2
13. A) What is the percentage of global ethnic diversity of India?
B) The regression coefficient for the fruit-fed birds and mammals of tropical forests is ? 1+1 = 2
14. Give one example each of loss of biodiversity by co-extinction and invasion of alien species. 1+1 = 2
15. A) The rate of the sixth extinction is estimated to be how many times faster than the previous extinction?
B) Write two examples each of in-situ and ex-situ conservation of biodiversity. 1+1 = 2
16. A) Draw a graph of the relationship of an area with its species richness.
B) Explain with examples what is latitudinal gradient. 1+ 2 = 3
17. Write any three effects of loss of biodiversity. 3
18. What is pro-insulin? Who invented the first man-made insulin? 2+1 = 3
19. State the use of the following 3
A) downstream processing B) ethidium bromide C) selectable marker
20. A) Draw a labeled diagram of pBR³²².
B) What is T DNA?
C) What is the use of beta galactosidase gene in recombinant technology? 1+1+2 = 4
21. With reference to DNA replication, answer the following – 4
A) The part of DNA from where the process of replication begins
B) the strand on which continuous DNA is formed
C) An enzyme that polymerizes in the formation of new DNA.
D) The place where this process takes place in the eukaryotic cell.

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