<prompt> All are true about cartilage, hair hypoplasia syndrome Except -NeutropeniaDepigmentd hairNon functioning T cellsNone of the above  <response>: Ans. is c Nonfunctioning T cells Ref. Nelson., 17e, p 698, 727, 790 76e, 625Cardinal feature of cartilage hair hypoplasia syndrome :Short limb dwarfism.Very fine thin light hairs and eyebrows.Hyperextensible joints of hands and feet but an inability to extend.Abnormalities of spine.NeutropeniaDefective antibody mediated immunity.Severe combined immunodeficiency and combined immunodeficiency.Decreased number of T cells and defective T cell proliferation, cell mediated immunity is also decreased.Nothing is written about the function of T cell, only their number is decreased. 