PSEB TERM 2 MODEL TEST PAPER BIOLOGY CLASS 10+2
CLASS-XII SUBJECT-BIOLOGY (Theory) TERM 2
Time : 2 Hours Max, Marks : 35
SECTION-A
Each question carries 1 mark :
Q1. What is meant by hidden hunger?
Q2. Difference in endonucleases and exonucleases.
Q3. What is golden rice?
Q4. Who proposed competition exclusion principle?
Q5. What is Ozone hole?
SECTION B
Each question carries 2 mark :
Q6. Write economic importance of pisciculture.
Q7. Expand the term LAB. Give their occurrence and significance.
Q8.What is DNA Probe?
Q9. What is environmental pollution? Is it due to Human activity?
Q10 What is Red Data book?
Q11. Difference between food chain and food web.
Q12. Why is agrobacterium tumefaciens good cloning vector.
Q13. Distinguish between YAC and BAC.
PSEB TERM 2 MODEL TEST PAPER BIOLOGY 10+2 DOWNLOAD HERE
PSEB TERM 2 MODEL TEST PAPER PHYSICS CLASS 10+2 DOWNLOAD HERE
SECTION C
Each question carries 2 mark :
Q14. Why ascorbic degradation is important than anaerobic degradation in waste water.
Q15. Write a short note on DNA finger printing.
Q16. What is photoperiodism. Write a note on it?
SCETION D
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- Each question carries 5 mark :
Q17. (a) A primary succession start on a base rock and reach a climax community?
(b) The algal bloom eventually choke the water body in an industrial area?
OR
What is the significance of biodiversity to human beings?
