How are acrosomal proteins released?
a. The most soluble acrosomal proteins are released first; bound acrosomal proteins are released second.
b. Bound acrosomal proteins are released first; soluble acrosomal proteins are released second.
c. Acrosomal proteins are released in one phase.
d. Acrosomal proteins are released after the zona pellucida is penetrated.
e. Acrosomal proteins are released as the sperm travels through the female reproductive tract before reaching the
egg.
ANSWER: a
You might also like to view...
Which statement best describes the evolutionary significance of mutualism?
A) Mutualism offers more biodiversity to a community. B) Individuals partaking in a mutualistic relationship are more resistant to parasites. C) Interaction increases the survival and/or population growth rate(s) of mutualistic species. D) Mutualistic interaction lessens competition in communities where it is present. E) Mutualistic relationships allow organisms to synthesize and use energy more efficiently.
The most common fatal genetic disorder of Caucasians is
A. cholera. B. cystic fibrosis. C. hemophilia. D. sickle cell anemia. E. muscular dystrophy.
Scientific theories are of fundamental importance in science. Explain the difference between the term "theory" as
employed in science versus "theory" as employed in everyday language.
What will be an ideal response?What is the association between tropomyosin and troponin molecules in resting striated muscle fibers?
A. Tropomyosin holds the troponin in place on the myosin. B. Troponin holds the tropomyosin in place on the myosin. C. Tropomyosin holds the troponin in place on the actin. D. Troponin holds the tropomyosin in place on the actin. E. There is no known association.