Pituitary and Sexual Development Review Quiz
1. The american aligator is an
example of chromosomal sex determination because it has an X and Y chromosome.
2. Gonadal sex in most mammals
is determined by the expression of the SRY gene on the Y chromosome in the
male and lack of SRY gene expression in the female.
3. In the mammalian female, the
lack of DHT leads to formation of the clitoris and labia. This is
an example of phenotypic sex.
4. Brain sex in mammals is the
result of fetal sex steroid exposure.
5. A human female with a single
X chromosome would have
6. Which of the following are
direct effects of SRY gene expression? (select all that apply)
7. The primordial germ cells in
mammals originates in the yolk sack placenta and then migrates through the
blood stream to the germinal ridge.
8. The gonad develops from the
9. The secondary sex chord forms
the seminiferous tubules under the influence of SRY while the cortical sex
chords form in the absence of SRY and develop into the egg nests.
10. Descent of the testis involves
which of the following? (select all that apply)
11. Identify which of the following
are direct effects of testosterone from the fetal testis? (select all that
12. In the human, which of the
following would be true of an XY individual who had testicular feminization?
(select all that apply)
13. Which of the following are
derived from the mullerian ducts? (select all that apply)