The basis for artificial seletion of desirable plants is

Options

A. Genetic variability in a population
B. Uniformity of population
C. More homozygosity in a population
D. High fertility in a population

Answer

**Step-by-Step Solution:**

1. **Understanding Artificial Selection**: Artificial selection is a process where humans select specific plants or animals for breeding based on desired traits. This is different from natural selection, where nature determines which organisms are more suited to survive and reproduce.

2. **Identifying the Key Factor**: The basis of artificial selection relies on the ability to choose specific traits. For this to be effective, there must be variations in the genetic makeup of the organisms being selected. This genetic variability allows for the selection of desirable traits.

3. **Evaluating the Options**:
- **Genetic variability in a population**: This option indicates that there are differences in the genes among individuals, which is essential for selecting desirable traits. This is the correct answer.
- **Uniformity of population**: If all individuals in a population are genetically identical, there would be no variation to select from, making this option incorrect.
- **More homozygosity in the population**: Homozygosity means that individuals have identical alleles for a trait. While this can lead to uniform traits, it does not provide the variability needed for selection, thus making this option incorrect.
- **High fertility in a population**: While high fertility can lead to more offspring, it does not directly relate to the selection of desirable traits. Therefore, this option is also incorrect.

4. **Conclusion**: The correct basis for artificial selection of desirable plants is **genetic variability in a population**. This variability allows for the selection and breeding of plants with specific traits that are beneficial for human use.

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