The karyotype of patient with androgen insensitivity syndrome is :: (A) 46XX, (B) 46XY, (C) 47XXY, (D) 45XO
Answer is B. Answer is B (46XY) : Individual with 'androgen insensitivity syndrome' are XY individuals (male karyotype) with a female phenotype. Mutation in the androgen receptor causes resistance to androgen action and the androgen insensitivity syndrome results.