Y-linked genes are also called

Options

A. Pseudoautosomal genes
B. Holandric genes
C. Incompletely sex linked genes
D. Sex linked genes

Answer

### Step-by-Step Solution:

1. **Understanding Y-linked Genes**:
- Y-linked genes are those genes that are located on the Y chromosome. The Y chromosome is one of the two sex chromosomes in humans, the other being the X chromosome.

2. **Identifying the Characteristics of Y-linked Genes**:
- These genes are present only in males since females have two X chromosomes (XX) and do not possess a Y chromosome.

3. **Transmission of Y-linked Genes**:
- Y-linked genes are inherited exclusively from father to son. This is because only males carry the Y chromosome, and thus any traits or diseases linked to Y-linked genes can only be passed from a father to his male offspring.

4. **Terminology**:
- Y-linked genes are also referred to as **holandric genes**. This term specifically denotes genes that are located on the Y chromosome and follow the inheritance pattern described.

5. **Conclusion**:
- Therefore, the answer to the question "Y-linked genes are also called" is **holandric genes**.