1. When does pairing synapsis of homologous chromosomes (bivalent formation) occur in meiosis?

2. Stages in proper sequence of Prophase I are

3. DNA replication takes place during

4. Crossing over occurs during

5. Lipids are insoluble in water as they are

6. The following molecule is

7. ATP is

8. Water is important for the functioning of body as

9. Sweetest sugar is

10. Key and lock hypothesis of enzyme action was given by

11. Feedback inhibition of enzyme is influenced by

12. Which one contains four pyrimidine bases?

13. A nucleoside is formed of

14. Enzymes are basically made of

15. The protein part of enzyme is

16. Bond present between two nucleotides of a polynucleotide is

17. Purine bases of DNA are

18. Proteins were named by

19. Cellulose is

20. Structure of DNA was given by

21. Besides nucleus, DNA is also present in

22. A source of maximum energy is

23. Best stage to observe shape, size and number of chromosomes is

24. Chromosomes present in prolonged prophase in the salivary glands of Drosophilla are

25. Secretory function of cell is carried out by

26. Enzymes associated with converting fats to carbohydrates are located in

27. Cell organelle covered by a single unit membrane is

28. Site for protein synthesis is

29. Nucleolus takes part in synthesis of

30. Cytoplasm of one cell is continuous with that of the adjacent cell through

31. Polyribosomes are aggregates of

32. The following are called "suicidal bags"

33. Ribosomes are centre for

34. Ribosomes of bacteria, mitochondria and chloroplasts are of

35. Fluid mosaic model of cell membrane was put forward by

36. Chiasmata are first seen in

37. Fuelgen test is specific for

38. Electron microscope has a high resolution power. This is due to

39. The smallest measuring unit of cytology is

40. Nucleus was discovered by