Question

Match LIST-I with LIST-II 

LIST-I (Scientist)		LIST-II (Landmark Discovery)
A.	Van Overbeek	I.	Transgenic Bt-cotton
B.	White	II.	Introduced coconut water as a media component
C.	Went	III.	First synthetic plant tissue culture medium
D.	Monsanto	IV.	First plant growth hormone i.e., IAA

Choose the correct answer from the options given below: 
 

• A. A-III, B-II, C-IV, D-I
• B. A-I, B-II, C-IV, D-III
• C. A-III, B-IV, C-II, D-I
• D. A-II, B-III, C-IV, D-I

Hint:

Create mental links for these historical figures: Went \(\rightarrow\) Auxin, Van Overbeek \(\rightarrow\) Coconut Water, White \(\rightarrow\) White's Medium, Monsanto \(\rightarrow\) GMOs (Bt-cotton).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
This question requires matching key figures and a company from the history of plant science and biotechnology with their significant discoveries or contributions.
Step 2: Detailed Explanation:
A. Van Overbeek: In 1941, J. van Overbeek and his colleagues discovered that coconut water (liquid endosperm) had a potent growth-promoting effect on plant embryos in culture. This was a major breakthrough in improving tissue culture media. Thus, he II. Introduced coconut water as a media component.
B. Philip R. White: He was a pioneer in plant tissue culture who, in 1939, developed one of the III. First synthetic plant tissue culture media (White's medium) capable of supporting long-term root culture.
C. Frits Went: In 1926, his classic experiments with oat coleoptiles demonstrated the existence of a chemical messenger responsible for phototropism. This substance was later identified as auxin (IAA), the IV. First plant growth hormone.
D. Monsanto: This multinational agricultural biotechnology company was a leader in developing genetically modified crops. They successfully commercialized I. Transgenic Bt-cotton (Bollgard), which is resistant to bollworm pests.
Step 3: Final Answer:
The correct matches are A-II, B-III, C-IV, D-I.