Variations during mutations of meiotic recombinations are

Options

A. random and directionless
B. random and directional
C. random and small
D. random, small and directional

Answer

To solve the question regarding variations during mutations of meiotic recombinations, we will analyze the options provided and the concept of mutations in the context of evolution.

### Step-by-Step Solution:

1. **Understand the Concept of Mutations**:
- Mutations are changes in the DNA sequence that can lead to variations in traits. They can occur spontaneously and can be caused by various factors, including environmental influences and errors during DNA replication.

2. **Recognize the Role of Meiotic Recombination**:
- Meiotic recombination is a process that occurs during meiosis, where homologous chromosomes exchange genetic material. This process increases genetic diversity in offspring.

3. **Evaluate the Options**:
- The question provides four options regarding the nature of variations caused by mutations and meiotic recombinations:
- (A) Random and directionless
- (B) Random and directional
- (C) Random and small
- (D) Random, small and directional

4. **Analyze Each Option**:
- **Option A (Random and directionless)**: This suggests that mutations occur without any specific direction or pattern. This aligns with the understanding that mutations can happen randomly and do not follow a predetermined path.
- **Option B (Random and directional)**: This implies that while mutations are random, they have a specific direction, which is not typically the case for mutations.
- **Option C (Random and small)**: This suggests that mutations are always small, which is not accurate as mutations can vary in size and impact.
- **Option D (Random, small and directional)**: This combines the previous points but still implies a directionality that is not characteristic of mutations.

5. **Conclusion**:
- Based on the analysis, the correct answer is **Option A: Random and directionless**. This reflects the nature of mutations as they occur without a specific direction or pattern, aligning with the mutation theory proposed by Hugo de Vries.

### Final Answer:
**Variations during mutations of meiotic recombinations are: Random and directionless.**

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