Determine whether or not fertilization would be successful if the given sperm is

Question

Determine whether or not fertilization would be successful if the given sperm is allowed to interact with the given egg in the lab. 5. Type of egg Is fertilization successful? Type of sperm Sea urchin sperm not exposed Normal sea urchin egg from the to egg jelly same species with its egg jelly removed Sea urchin sperm exposed to Normal sea urchin egg from a different species Mouse sperm extracted directly Mouse oocyte with normal cumulus complex Sea urchin egg held at a constant +20mV by using an electrophysiological voltage clamp from seminiferous tubules Normal sea urchin sperm

Explanation / Answer

Type of sperm Type of egg Is fertilization successful? Sea urchin sperm not exposed to egg jelly Normal sea urchin egg from the same species with its egg jelly removed Fertilization is not successful because sea urchin sperm is not exposed to egg jelly Sea urchin sperm exposed to egg jelly Normal sea urchin egg from a different species Fertilization occurs because sperm undergoes acrosomal reaction inorder to fertilize the egg during the interaction of sperm with egg jelly presents on the external coat of the egg Mouse sperm extracted directly from seminiferous tubules Mouse oocyte with normal cumulus complex Fertilization occurs Norma sea urchin sperm Sea urchin egg held at a constant +20mV by using an electrophysiological voltage clamp Fertilization not occurs because by maintaining a value of -80mV to 17mV only the sperm entry occurs and fertilization takes places

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