Fertilization Review Quiz
1. The findings of Austin and Chang provided evidence that sperm must undergo changes, termed capacitation, within the female tract that allow them to fertilize an oocyte.
2. If seminal plasma is added to capacitated sperm it will decapacitate these sperm. The sperm must undergo capacitation again before they could fertilize an oocyte.
3. Hyperactivation of sperm involves an increase in the amplitude of tail beat and is important for movement of sperm up the oviduct and penetration through cumulus cells.
4. The acrosome reaction involves the fusion of the outer acrosomal membrane and plasma membrane.
5. The site of the physiologically important acrosome reaction is when sperm are released from oviduct epithelial cells in the isthmus of the oviduct.
6. Which of the following is the primary mechanism to block polyspermy in humans and cattle.
7. If a capacitated sperm was blocked from binding to the zona, it would not undergo the zona pelucida induced acrosome reaction.
8. ZP2 is responsible for inducing the acrosome reaction in capacitated sperm.
9. Which of the following events occur in the cytoplasm of a sperm undergoing capacitation.
10. Which of the following mechanism are thought to be principally responsible for the calcium increase in the oocyte at sperm penetration.
11. The increase in calcium within the oocyte at sperm penetration leads to a destruction of MPF.
12. The MPF levels in an unfertilized oocyte at metaphase II of meiosis would be considered to be low.
13. During sperm decondensation in the oocyte cytoplasm, the sperm nucleus shrinks to a point of chromatin.
14. Sygamy is when two pronuclei fuse in the zygote.