The differences in male and female secondary sexual traits are due to the _____
a. relative proportion of sex steroid hormones in males vs. females
b. production of different sex steroid hormones by males and females
c. differences in sex steroid hormone receptors in males vs. females
d. exposure to environmental toxins during fetal development
e. absence of sex steroid hormones in females
ANSWER: a
You might also like to view...
While conducting an experiment, you realize that a competitive inhibitor was interfering with your reaction. How could you overcome this problem?
A. Add a non-competitive inhibitor to the reaction. B. Add a cofactor to the reaction. C. Increase the concentration of the correct substrate in the reaction. D. Add an allosteric activator to the reaction.
Every community has an associated vertical structure
Indicate whether the statement is true or false
Embryonic endoderm gives rise to:
a. muscle. b. the lining of the digestive tract. c. the nervous system. d. skin. e. skeletal tissue
Bacteriocins and defensins are types of which of the following?
A) leukotrienes B) cytokines C) inflammation-eliciting mediators D) antimicrobial peptides