X-linked recessive disease shows the transmission from male to

Options

A. male progeny
B. female progeny
C. both male and female progeny in equal proportion
D. both male and female progeny in unequal proportion

Answer

### Step-by-Step Solution:

1. **Understanding X-linked Recessive Diseases**:
- X-linked recessive diseases are genetic disorders caused by mutations on the X chromosome. These diseases manifest primarily in males due to the presence of only one X chromosome.

2. **Inheritance Pattern**:
- The inheritance pattern of X-linked recessive diseases is known as criss-cross inheritance. This means that the disease can be passed from father to daughter and from mother to son.

3. **Transmission from Male to Progeny**:
- A male with an X-linked recessive disease will pass his X chromosome (which carries the defective gene) to his daughters.
- Sons inherit the Y chromosome from their father and the X chromosome from their mother, so they do not receive the X-linked recessive allele from their father.

4. **Example of X-linked Recessive Disease**:
- Color blindness is a common example of an X-linked recessive disease. A colorblind male will pass the allele for color blindness to his daughters, making them carriers or affected, but not to his sons.

5. **Conclusion**:
- Therefore, the transmission of an X-linked recessive disease from a male occurs to his female progeny (daughters) only.

### Final Answer:
X-linked recessive diseases show transmission from male to female progeny (daughters).

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