Minor change in gene's structure is called

Options

A. Reversible mutation
B. Point mutation
C. Forward mutation
D. Back ward mutation

Answer

To solve the question "Minor change in gene's structure is called," we need to analyze the options provided:

1. **Reversible Mutation**: This type of mutation refers to a mutation that can revert back to its original state. While it involves changes in the gene structure, it does not specifically refer to a minor change.

2. **Point Mutation**: This is a specific type of mutation where a single nucleotide in the DNA sequence is altered. This alteration can lead to a minor change in the gene's structure, making it the most fitting option for the question.

3. **Forward Mutation**: This term describes a mutation that leads to a change in the gene that is considered to be an advancement or progression. It does not specifically indicate a minor change.

4. **Backward Mutation**: This refers to a mutation that reverts a gene back to its original state or a previous state. Like reversible mutations, it does not denote a minor change.

Based on the definitions and characteristics of each type of mutation, the best answer to the question is:

**Answer: B) Point Mutation**