1. The American multinational company, Monsanto, has produced an insect-resistant cotton variety that is undergoing field trials in India. A toxin gene from which one of the following bacteria has been transferred to this transgenic cotton? [CSE (Pre) 2002]

2. King Cobra is the only snake that makes its own nest. Why does it make its nest? [CSE (Pre) 2010]

3. Which one of the following statements is not correct? [CSE (Pre) 2004]

4. Match List I (Scientists) with List II (Achievements) and select the correct answer using the codes given below [CSE (Pre) 2002] List I (Scientists) List II (Achievements) A. Arber and Smith 1. Developed transgenic plants with Agrobacterium T-DNA B. Feldman 2. Discovered endonucleases C. Mullis 3. Discovered reverse transcriptase D. Temin and Baltimor. 4. Discovered polymerase chain reaction Codes A B C D

5. Foot and mouth disease in animals, a current epidemic in some parts of the world, is caused by [CSE (Pre) 2002]

6. At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us? [CSE (Pre) 2011. 1. It is possible to know the pedigree of livestock. 2. It is possible to understand the causes of all human diseases. 3. It is possible to develop disease resistant animal breeds. Which of the statements given above is /are correct?

7. Which of the following statements is/are correct regarding vegetative propagation of plants? [CSE (Pre) 2014. 1. Vegetative propagation produces clonal population. 2. Vegetative propagation helps in eliminating the virus. 3. Vegetative propagation can be practiced most of the year. Select the correct answer using the codes given below

8. Antigen is a substance which [CSE (Pre) 2002]

9. In the context of genetic disorders, consider the following [CSE (Pre) 2009] A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct?

10. The hormone insulin is a [CSE (Pre) 2004]

11. The cellular and molecular control of programmed cell death is known as [CSE (Pre) 2002]

12. Consider the following organisms [CSE (Pre) 2013. 1. Agaricu. 2. Nosto. 3. Spirogyra Which of the above is/ are used as biofertiliser/biofertilisers?

13. Assertion (A) Drinking of whisky increases the frequency of urination. Reason (R) Alcohol intake speeds up the secretion of vasopressin in the body. [CSE (Pre) 2002] Codes

14. Assertion (A) 'DNA Finger printing' has become a powerful tool to establish paternity and identity of criminals in rape and assault cases. Reason (R) Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis. [CSE (Pre) 2002] Codes

15. Assertion (A) In human beings, the female play a major role in determining the sex of the offspring. Reason (R) Women have two 'X' chromosomes. [CSE (Pre) 2002] Codes

16. In making the saffron spice, which one of the following parts of the plant is used? [CSE (Pre) 2009]

17. Consider the following statements [CSE (Pre) 2010. 1. Every individual in the population is equally susceptible host for Swine Flu. 2. Antibiotics have no role in the primary treatment of swine flu. 3. To prevent the future spread of swine flu in the epidemic area, the swine (pigs) must all be culled. Which of the statements given above is /are correct?

18. In the context of the developments in Bioinformatics, the term transcriptome, sometimes seen in the news, refers to [CSE (Pre) 2016]

19. Athlete's foot is a disease caused by [CSE (Pre) 2002]

20. In human beings, normally in which one of the following parts, does the sperm fertilise the ovum? [CSE (Pre) 2007]

21. Which of the following pairs is/are correctly matched? [CSE (Pre) 2014] Vitamin Deficienc. 1. Vitamin-C : Scurv. 2. Vitamin-D : Ricket. 3. Vitamin-E : Nightblindness Codes

22. H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases? [CSE (Pre) 2015]

23. Match List I (endocrine glands) with List II (hormones secreted) and select the correct answer using the codes given below [CSE (Pre) 2002] List I List II A. Gonads 1. Insulin B. Pituitary 2. Progesterone C. Pancreas 3. Growth hormones D. Adrenal 4. Cortisone Codes A B C D

24. Viruses are transmitted from one organism to another by biological vectors only. Select the correct answer using the codes given below

25. Consider the following statements [CSE (Pre) 2004. 1. The common blue green algae, Spirogyra and Ulothrix, are found in both fresh water ponds and oceans. 2. The Chameleon can look ahead with one eye and at the same time look behind with another. Which of these statements is/are correct?