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CTET Prep: Science Questions - Biology - Scientists' Contribution in Biology
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CTET Prep: Science Questions - Biology - Scientists' Contribution in Biology
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25 Questions

1. Double helix model of DNA is given by
2. What is the application of Somatic Cell Nuclear Transfer Technology?
3. Match List-I with List-II and select the correct answer using the codes given below the lists: List-I (Scientist) List-II (Achievements)
A. Arber and Smith
1. Developed transgenic plant with agrobacterium TDNA
B. Feldman 2. Discovered revers transcriptase
C. Mullis 3. Discovered endonucleases
D. Temin & Baltimore
4. Discovered polymerase chain reaction Codes A B C D
4. Scientist who first explain about circulatory system
5. The first pure enzyme was prepared by
6. First Calf Clone is created by
7. Consider the following statements:
1. Adam Osborne produced the first portable computer.
2. Lan Wilmut created the first cloned sheep. Which of the statements given above is/are correct?
8. Which of the following scientists has established the ‘Phylum Annelida’?
9. Scientist who crystallised virus for the first time
10. Which one of the following pair is not matched?
Recent Scientific Achievement - Country
11. Which of the facts about Dolly (sheep), the first mammal cloned form an adult somatic cell is not correct?
12. Blood Group is discovered by
13. Green house effect is
14. Match List-I with List-II and select the correct answer using the codes given below the lists: List-I (Discovery / Invention) List-II (Scientist)
A. Circulation of blood in human body
1. William Harvey
B. Stethoscope 2. Wilhelm C. Roentgen
C. X-rays 3. William Einthoren
D. Electro- Cardiogram (ECG)
4. Rene Laennec
5. Hargovind Khurana Codes A B C D
15. The Hormone insulin is invented by
16. Stethoscope was invented by
17. Among pollutants which has the most lasting effect
18. Biologist who proposed the theory of Germ plasm
19. Who proposed that every living beings are made up of cell?
1. Louis Pasteur 2. Robert Hooke
3. Schleiden 4. T. Schwann Codes
20. Scientist who discovered cell division
21. The term biotechnology was coined by
22. Scientist who laid the foundation of bacteriology
23. Who discover the causal organism of the disease Anthrax?
24. The technique of DNA finger printing in human was developed for first time by
25. Kohler and Milstein developed biotechnology for production of

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