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Assertion (A): B-galactosidase coding se...

Assertion (A): B-galactosidase coding sequence act as a selectable marker. Reason (R) : Enzyme galactosidase converts the galactose into lactose.

A

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

B

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

C

Assertion (A) is true but reason (R) is false.

D

Assertion (A) is false but reason (R) is true.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, let's break it down step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that the B-galactosidase coding sequence acts as a selectable marker. - In biotechnology, selectable markers are genes that confer a trait suitable for artificial selection. They help in identifying and isolating the organisms that have taken up a foreign DNA. 2. **Understanding the Reason**: - The reason states that the enzyme galactosidase converts galactose into lactose. - However, this statement is incorrect. B-galactosidase actually converts lactose into glucose and galactose, not the other way around. 3. **Evaluating the Relationship**: - While the assertion is true (B-galactosidase is indeed used as a selectable marker), the reason provided is incorrect. The reason does not accurately explain the assertion. 4. **Conclusion**: - Since the assertion is correct but the reason is incorrect, the correct option is that the assertion is correct but the reason is wrong. ### Final Answer: The correct option is: **Assertion is correct but reason is wrong.** ---
To analyze the assertion and reason provided in the question, let's break it down step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that the B-galactosidase coding sequence acts as a selectable marker. - In biotechnology, selectable markers are genes that confer a trait suitable for artificial selection. They help in identifying and isolating the organisms that have taken up a foreign DNA. ...
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