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Science Quiz 43

author October 31, 2025 No Comments

Welcome to your Science Quiz 43

1. 
Assertion (A): Human diet should compulsorily contain Glycerin, Serine, and Tyrosine. Reason (R): Essential amino acids cannot be synthesised in the human body. [2002]

2. 
Which of the following cell organelles play the most significant role in protein synthesis? [2001]

3. 
Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules. Reason (R): DNA fragments can be manipulated using restriction endonucleases and DNA ligases. [2001]

4. 
The cellular and molecular control of programmed cell death is known as: [2001]

5. 
Which organelle in the cell, other than nucleus, contains DNA? [2001]

6. 
Epiphytes are plants which depend on other plants for: [2001]

7. 
Antigen is a substance which: [2001]

8. 
Which of the following features of DNA makes it uniquely suited to store and transmit genetic information from generation to generation? [2001]

9. 
Match List I with List II and select the correct answer using the codes given below the Lists: [2001]

List I (Bone) 

  1. Breast-bone 
  2. Collar-bone

III. Knee-cap

  1. Shoulder blade

List II (Name)

  1. A) Clavicle
  2. B) Patella
  3. C) Scapula
  4. D) Sternum

10. 
Consider the following statements: [2001]

  1. Tapeworm is a hermaphrodite. 
  2. Round-worms have separate sexes. III. Filaria is caused by a nematode. IV. Guinea-worm is an annelid. 

Which of these are correct?

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