Saltation means

Options

A. Single step small mutation
B. Single stem small variation
C. Single step large mutation
D. Single step large variation.

Answer

**Step-by-Step Solution:**

1. **Understanding Saltation**: The term "saltation" is derived from the Latin word "saltare," which means to leap. In biological terms, it refers to a significant and sudden change in an organism, often leading to the emergence of a new species.

2. **Historical Context**: The concept of saltation was introduced by Hugo de Vries in 1901 as part of his mutation theory. He proposed that evolution is not a gradual process but occurs in abrupt, significant steps due to mutations.

3. **Comparison with Darwin's Theory**: While Darwin emphasized gradual changes through small, heritable variations, de Vries argued that evolution happens through large mutations that can lead to new species in a single leap.

4. **Definition of Saltation**: Based on de Vries' theory, saltation specifically refers to a single-step large mutation that can result in the creation of a new species. This contrasts with the gradual accumulation of small changes proposed by Darwin.

5. **Conclusion**: Therefore, the correct definition of saltation is that it means a single-step large mutation that can lead to the formation of a new species.

**Final Answer**: Saltation means a single-step large mutation that leads to the production of new species.

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