Evolution at the genetic level due to changes in the hereditary material at the level of population is called

Options

A. A.Macroevolution
B. B.Microevolution
C. C.Saltation
D. D.Sports

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes evolution at the genetic level due to changes in hereditary material within a population.

2. **Analyzing the Options**:
- **Option A: Macro Evolution**: This term refers to large-scale evolutionary changes that occur at or above the level of species. It does not focus on genetic changes within populations.
- **Option B: Micro Evolution**: This term refers to small-scale evolutionary changes that occur within a population, particularly at the genetic level. It involves changes in allele frequencies and genetic variation over time.
- **Option C: Saltation**: This term refers to sudden and large mutational changes that can lead to speciation in a single step. It is not specifically about gradual genetic changes within a population.
- **Option D: Sports**: This term is not relevant to the context of evolutionary changes at the genetic level.

3. **Identifying the Correct Answer**: After analyzing all the options, it is clear that the term that best fits the description of evolution at the genetic level in populations is **Micro Evolution**.

4. **Conclusion**: Therefore, the correct answer to the question is **Option B: Micro Evolution**.

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