Question

Which microorganism is used in plant genetic engineering?

• A. Agrobacterium tumefaciens
• B. Escherichia coli
• C. Bacillus subtilis
• D. Saccharomyces cerevisiae

Hint:

Agrobacterium tumefaciens is the "natural genetic engineer" of plants, transferring DNA to plant cells to create genetically modified crops.

Answer 1

The Correct Option is A

Step 1: Understanding the Question.
This question asks which microorganism is commonly used in plant genetic engineering.

Step 2: Analyzing the Options.
(A) Agrobacterium tumefaciens: Correct — This bacterium is known for its role in plant genetic engineering, particularly in transferring genes to plants.
(B) Escherichia coli: While E. coli is commonly used in molecular biology, it is not the primary microorganism for plant genetic engineering.
(C) Bacillus subtilis: This bacterium is used in other applications but not in plant genetic engineering.
(D) Saccharomyces cerevisiae: This yeast is used in biotechnology but not for plant genetic engineering.

Step 3: Conclusion.
The correct answer is (A) Agrobacterium tumefaciens, which is widely used to introduce foreign genes into plant cells.