Question

Match the transgenic crop in Column I with the inserted gene in Column II. Choose the correct option

Column I	Column II
(A) Canola	(I) Metallothionein
(B) Tomato	(II) Chalcone isomerase
(C) Sugarbeet	(III) Sucrose:sucrose fructosyl transferase
(D) Rice	(IV) \(\gamma\) - tocopherol methyl transferase

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

Hint:

Recall the improved trait of each transgenic crop and the gene responsible.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept
Transgenic crops carry a foreign gene that improves a particular trait.

Step 2: Match the first pair
Canola has the gamma-tocopherol methyl transferase gene, which increases vitamin E (A - IV). Tomato has chalcone isomerase, which raises flavonol levels (B - II).

Step 3: Match the rest
Sugar beet has sucrose:sucrose fructosyl transferase, which gives low-calorie fructans (C - III). Rice has the metallothionein gene, which raises iron content (D - I).

Step 4: Conclusion
The correct combination is A - IV, B - II, C - III, D - I.

Final Answer:
The correct matching is A - IV, B - II, C - III, D - I. \[ \boxed{\text{(D) }\text{A - IV, B - II, C - III, D - I}} \]