1. Gene is

2. Cell wall of chloroplast is removed, the remaining is called

3. Which of the following is a bacterial disease?

4. The life span of human erythrocytes is approximately

5. Which of the following characteristics distinguish man from other animals?
1. His capacity to adapt to the needs of the environment
2. His curiosity
3. His blood groups
4. His DNA
Select the correct answer from the following:

6. One of the greatest famines of the nineteenth century suffered by the Irish people which led to over 1 million deaths due to starvation was caused by a fungal infection of the potato crop. The disease it caused was

7. The fluid reaching the distal convoluted tubule from the ascending limb of Henle's loop is

8. Coal burning power plants and factories are responsible for about 86% of -

9. The main difference between the living and nonliving is

10. Consider the following pairs Plant hormone
Function/Effect
1. Indole-3 acetic acid — Rooting in cuttings
2. Gibberellic acid — Stomatal closure
3. Ethylene — Fruit ripening
4. Zeatin — Cell division
Which of the above pairs are correctly matched?
Select the correct answer from the following:

11. Which term is the smallest subdivision in this group?

12. The tissue that is involved in the transport of food material in plants is called:

13. In the event of a fall of a woman in the bathroom, the head of the femur separated off the bone. An X-ray revealed that it did not fit into

14. Minute, circular discs floating in the blood, which carry oxygen to the tissues, and carbon dioxide away from them, are called

15. The necrotic ring spot disease of stone fruits (cherry, peach, plum, etc.) is caused by

16. The water core disease of apples is caused by

17. Spinal cord is a long narrow and almost cylindrical structure that extends from the brain to the

18. Our major foods, fibres, spices, fruits and beverage crops are

19. Vitamin D is manufactured by the activation of ergosterol by U.V light in the

20. Consider the following statements and select the correct answer from the codes given below:
1. Viruses are obligate parasites and cannot be cultured on a synthetic medium
2. The red snow phenomenon observed in some alpine and arctic regions is caused by a lichen growing in these areas
3. The red rust of tea is caused by a green alga
4. A solution of chlorophyll pigments looks red in reflected light due to the phenomenon of diffraction.
Which of the above statement/s is/are true?

21. Menopause usually occurs between

22. Which of the following is the basic characteristic of a living organism?

23. Cell recognition and adhesion occur due to biochemicals of cell membrane named

24. Which of the following plant diseases are caused by viruses?
1. Aster yellows
2. Foot rot of paddy
3. Leaf curl of tobacco
4. Little leaf of Sweet potato
Which of the above disease/s is/are caused by the bacteria?

25. In humans, ovarian follicles reach maturity from the beginning of a menstrual cycle in