Question

11. Name the types of acquired immune responses and the special types of
lymphocytes involved in providing them.
Name two organisms belonging to two different kingdoms that are
13. Write two major causes of deforestation. Explain the role of reforestation
OR
commonly used as biofertilizers, and how?
12. Write the basis of naming the restriction endonuclease EcoR-I.
SECTION-
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in maintaining ecological balance.
14. How would you differentiate between gross primary productivity from net
primary productivity, and secondary productivity of an ecosystem.
OR
(a) Explain the concept of endemism.
b) Name four regions in and around our country that are considered
hot-spots
15. Compare the symptoms of ascariasis, amoebiasis and elephantitis.
16. (a) Write the difference between the pro insulin and mature insulin.
(b) How did American company Eli Lilly produce human insulin using
rDNA technique ?
17. Explain the discovery made by Hershey and Chase using radioactive
sulphur and phosphorus in their experiment.
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OR​

Answer 1

Explanation:

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