Alleles of different genes found on same chromosome may separate due to

Options

A. Epistasis
B. Crossing over
C. Continous variations
D. Pleiotrophy

Answer

To solve the question "Alleles of different genes found on the same chromosome may separate due to," we need to analyze the provided options and understand the genetic concepts involved. Here’s the step-by-step solution:

### Step 1: Understand the Question
The question is asking about the mechanism that allows alleles of different genes located on the same chromosome to separate during inheritance.

### Step 2: Analyze the Options
The options provided are:
1. Epistasis
2. Crossing over
3. Continuous variation
4. Pleiotropy

### Step 3: Define Each Option
- **Epistasis**: This refers to the interaction between genes where the effect of one gene is masked or suppressed by another gene. It does not involve the separation of alleles.

- **Crossing Over**: This is a process that occurs during meiosis where homologous chromosomes exchange segments of genetic material. This exchange can lead to the separation of alleles that are located on the same chromosome.

- **Continuous Variation**: This refers to a range of phenotypes that occur in a population, typically influenced by multiple genes. It does not directly relate to the separation of alleles.

- **Pleiotropy**: This describes a situation where one gene influences multiple phenotypic traits. It does not involve the separation of alleles on the same chromosome.

### Step 4: Identify the Correct Answer
From the definitions, it is clear that **crossing over** is the only option that directly relates to the separation of alleles on the same chromosome. During meiosis, crossing over allows for genetic recombination, which can separate alleles of different genes that are located on the same chromosome.

### Conclusion
The correct answer is **Crossing Over**.