How many of the following diseases can be studied with the help of pedigree chart? Turner's syndrome, Phenylketonuria, Down's syndrome, Sickel-cell anaemia, Klinefleter's syndrome, Haemophilia, Cystic fibrosis, Myotonic dystrophy.

Pick out the correct statements a. Haemophilia is a sex linked recesive disease b. Down's syndrome is due to ancuploidy Phenylketonuria is an autosomal recessive gene disorder d.Sickle cell anaemia is a X-linked recessive gene disorder