A gene located on Y-chromosme and therefore, transmitted from father to son is known as :-

Options

A. Supplementary gene
B. Complementary gene
C. Duplicate gene
D. Holandric gene

Answer

To solve the question "A gene located on Y-chromosome and therefore, transmitted from father to son is known as:", we will analyze the options provided and identify the correct term for such genes.

### Step-by-Step Solution:

1. **Understanding the Y-Chromosome**:
- The Y-chromosome is one of the two sex chromosomes in humans (the other being the X-chromosome). It is typically associated with male characteristics and is passed from father to son.

2. **Identifying the Gene Type**:
- Genes located on the Y-chromosome are inherited in a paternal manner, meaning they are transmitted directly from father to son.

3. **Reviewing the Options**:
- **Supplementary Gene**: These are independent dominant genes that do not relate to Y-chromosome inheritance.
- **Complementary Gene**: These are non-allelic dominant genes that work together to produce a phenotype but do not relate to Y-chromosome inheritance.
- **Duplicate Genes**: These genes determine similar traits but are not specific to Y-chromosome inheritance.
- **Holandic Genes**: This term refers specifically to genes located on the Y-chromosome that are transmitted from father to son.

4. **Conclusion**:
- Based on the definitions and inheritance patterns, the correct answer is **Holandic Genes**.

### Final Answer:
The gene located on the Y-chromosome and transmitted from father to son is known as **Holandic Genes**.

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