Select the correct statement.

Options

A. Tightly linked genes on the same chormosomes show higher recombination .
B. Genes far apart on the same chromosome show very very few recombination
C. Genes loosely linked on the same chormosomes show similar recombination as the tightly linked ones .
D. Tightly linked genes on the same chromosome show very few recombination

Answer

To solve the question, we need to analyze the statements given and determine which one is correct based on our understanding of genetic recombination.

### Step-by-Step Solution:

1. **Understanding Recombination**:
- Recombination refers to the process by which genetic material is rearranged during meiosis, leading to the formation of new combinations of alleles. This can occur through crossing over or independent assortment of chromosomes.

**Hint**: Recombination is a key process in genetics that leads to genetic diversity.

2. **Analyzing the Statements**:
- **Statement 1**: Tightly linked genes on the same chromosome show higher recombination.
- This statement is incorrect. Tightly linked genes are located close to each other on the same chromosome, which results in lower recombination frequency because they are less likely to be separated during crossing over.

**Hint**: Remember that proximity on a chromosome affects recombination frequency.

- **Statement 2**: Genes that are far apart show less frequency of recombination.
- This statement is also incorrect. Genes that are far apart on a chromosome tend to show higher recombination frequency because there is a greater chance of crossing over occurring between them.

**Hint**: Think about how distance affects the likelihood of crossing over.

- **Statement 3**: Loosely linked genes on the same chromosome show similar recombination as tightly linked genes.
- This statement is incorrect. Loosely linked genes will show a higher recombination frequency compared to tightly linked genes because they are further apart.

**Hint**: Compare the recombination frequencies of loosely linked versus tightly linked genes.

- **Statement 4**: Tightly linked genes show less recombination.
- This statement is correct. Tightly linked genes are close together on the chromosome, leading to a lower frequency of recombination.

**Hint**: Focus on the relationship between gene distance and recombination frequency.

3. **Conclusion**:
- After analyzing all the statements, the correct statement is that tightly linked genes show less recombination.

### Final Answer:
The correct statement is: **Tightly linked genes show less recombination.**