Karnataka II PUC Biology Model Question Paper 2021-22
Name of the Organisation : Department of Post University Education, Karnataka
Exam : II PUC Biology Exam
Subject : Biology
Document Type : Model Question Paper
Website : https://pue.karnataka.gov.in
Karnataka II PUC Biology Model Question Paper
Department of Post University Education, Karnataka Biology Model Question Paper II PUC for the year 2021-22.
Related / Similar Question Paper : Karnataka II PUC Geology Model Question Paper 2021-22
Karnataka II PUC Biology Questions
PART – A
Answer any TEN of the following questions in ONE word or ONE sentence each:
1. Mention the unique reproductive behaviour ofStrobilanthuskunthiana.
2. Name the type of pollination that brings genetically different types of pollen to stigma.
3. State the function of filiform apparatus.
4. Give an example for non-medicated IUD.
5. With reference to the Mendelian laws of inheritance, state the meaning of ‘dominance’.
6. Which autosome-linked disorder is associated with the reduced rate of synthesis of one of the globin chains of haemoglobin?
7. Name the pyrimidine present both in RNA and DNA.
8. Patients who have undergone surgery are treated with a very effective sedative and pain killer. Name this.
9. Mother’s milk is considered very essential for new born infant. If so, how it provides immunity?
10. Mention the role of Azospirillum as biofertilizer.
11. How do statins function in our body as bioactive blood-cholesterol lowering agent?
12. Which is the source for agarose used as matrix in gel electrophoresis?
13. Give an example for the technique used in molecular diagnosis based on the principle of antigen-antibody interaction.
14. “India has more than 1,000 varieties of mango”. Which level of diversity does this represent?
15. Define endemism.
PART – B
Answer any FIVE of the following questions in 3-5 sentences each, wherever applicable:
16. Name the vegetative propagules in:
i) Potato ii) Water hyacinth
17. Differentiate between syngamy and triple fusion.
18. “GnRH and LH are absolutely necessary for the process of spermatogenesis”. Justify this by giving one reason for each.
19. Give one example for:
i) Codominant phenotype
ii) Animal with XO type of sex determination.
20. Give reason for the occurrence of
i) Polyploidy
ii) Turner’s syndrome.
21. “Evolution can also occur by anthropogenic action”. Substantiate the statement by giving two examples.
22. List any two physiological barriers of innate immunity.
23. Even though inbreeding is disadvantageous in agriculture, still it is essential. Justify this by giving two reasons.
24. Mention one method for the introduction of recombinant DNA into
i) animal cell ii) plant cell
25. State how does ex situ conservation help in protecting biodiversity.
PART – C
Answer any FIVE of the following questions in 40-80 words each, wherever applicable:
26. Write a note on external fertilization.
27. Explain any three outbreeding devices in flowering plants.
28. List the functions of placenta.
29. Why Drosophila melanogasteris consideredsuitable for genetic studies?
30. Mention the role ofi) Promoter ii) Terminator iii) Cistron in a transcription unit.
31. Enlist any three measures useful for prevention and control of alcohol and drug abuse among adolescents.
32. What is biofortification? Mention any two objectives.
33. Graphically represent Logistic growth curve.
34. Schematically represent simplified model of phosphorus cycling in terrestrial ecosystem.
35. Write a note on catalytic converters.
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