<prompt> In a family, mother is normal while father has a genetic disease. All their daughters are carriers and sons are normal, what is the pattern of inheritance of disease?X-linked recessiveX-linked dominantADAR  <response>: a. X-linked recessiveRef: Nelsons 20e p 595, Ghai 8e p 640In a X-linked recessive disease; affected male transmits the disorder to all his daughters carriersSons get their X chromosome from their mother not from their fatherHence sons of a diseased father are unaffected in X-linked diseasesIn an X-linked dominant disorder all the daughters of an affected father would be diseased and not carriers. 