試題詳解

11. Sex determination in mammals is due to the SRY gene found on the Y chromosome. Which of the following situations could allow a person with an XX karyotype to develop a male phenotype?
(A) the loss of the SRY gene from an autosome
(B) translocation of SRY to an X chromosome
(C)the presence of an extra autosomal chromosome
(D) the presence of one normal and one shortened (deleted) X chromosome
(E)None of the above.