Question

A gene duplication event in an organism results in two copies of a gene. Which one (or more) of the following outcomes is/are possible for the duplicated copy?

• A. It retains the original function.
• B. It acquires a new function.
• C. It loses function.
• D. It gets translated but not transcribed.

Hint:

Gene duplication can lead to retention of the original function, loss of function, or the evolution of new functions in the duplicated gene.

Answer 1

The Correct Option is A, B, C

Gene duplication is an important evolutionary process that can lead to the development of new functions and adaptations. Following a gene duplication event, several possible outcomes for the duplicated gene include:

Step 1: Analyzing the options.
- (A) It retains the original function: After duplication, one copy of the gene may continue to function as the original gene did, while the other copy may undergo evolutionary changes. - (B) It acquires a new function: One copy of the gene may evolve a new function, potentially providing an advantage to the organism. - (C) It loses function: Sometimes one copy of the gene becomes non-functional due to mutations, which may still contribute to the overall genetic diversity of the organism. - (D) It gets translated but not transcribed: This is unlikely, as translation is typically preceded by transcription in the expression of a gene.

Step 2: Conclusion.
The correct answers are (A), (B), and (C), as these are all possible outcomes for a duplicated gene.

Final Answer: (A), (B), (C)