<prompt> Which of the following is the most likely inheritance pattern in the pedigree given belowAutosomal dominantMitochondrialAutosomal recessiveXlinked dominant  <response>: It is an X-linked dominant pattern of inheritance.The features which suggest the X-linked dominant pattern of inheritance are-A single abnormal X chromosome is sufficient to express the disease.All of the female offsprings of a diseased male XY will receive the abnormal X chromosome and express the disease, whereas none of the male offspring to the deceased father will have the disease as sons dont receive X chromosome from their father.A diseased mother can transmit the abnormal X chromosome to both daughter and sons equally. 