Plotting of specific genes on the chromosome is known as

Options

A. Chromosome map
B. woolly hair
C. Brachydactyly
D. curly hairs

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe the plotting of specific genes on a chromosome.

2. **Identifying the Concept**: In genetics, the arrangement of genes on a chromosome is crucial for understanding inheritance patterns.

3. **Defining the Term**: The plotting of specific genes on a chromosome is referred to as a "chromosome map."

4. **Synonyms**: A chromosome map may also be known as a "linkage map" or a "genetic map." These terms are often used interchangeably in genetics.

5. **Purpose of a Chromosome Map**: A chromosome map provides a linear graphic representation of the sequence of genes and their relative distances. This is important for determining how likely genes are to be inherited together or to undergo recombination during meiosis.

6. **Linkage and Distance**: The closer the genes are on the chromosome, the more likely they are to be inherited together (linkage). Conversely, if genes are far apart, they are more likely to be separated during crossing over, leading to recombination.

7. **Conclusion**: Based on the definitions and explanations provided, the correct answer to the question is that the plotting of specific genes on a chromosome is called a "chromosome map."

**Final Answer**: The plotting of specific genes on a chromosome is known as a **chromosome map**.

---