15 Questions on Animal Reproduction - Quiz 3 | ANSI 3443, Quizzes of Animal Biology

Download 15 Questions on Animal Reproduction - Quiz 3 | ANSI 3443 and more Quizzes Animal Biology in PDF only on Docsity! 1 ANSI 3443 Quiz 3 April 5, 2006 Name ____________________________ For the following multiple choice questions, circle the single most appropriate answer; each is worth 1.5 points. 1. Diestrus: A. Occurs between day 2 and 4 of the estrous cycle. B. Is characterized by presence of the corpus hemorrhagicum. C. Occurs during the follicular phase. D. Is characterized by high progesterone levels. 2. Tools or procedures developed to diagnose the type of ovarian cysts include: A. Rectal ultrasonography. B. Milk progesterone ELISA tests. C. Both. D. Neither. 3. For most farm animals, it is estimated that the time it takes for capacitation of sperm during its passage through the uterus and oviduct is: A. About 1 hour. B. About 3-6 hours. C. About 1 day. D. About 3-6 days. 4. Factor(s) that would cause an DECREASE in the effectiveness of an oocyte to block polyspermy include: A. Heat stress to the cows around the time of ovulation. B. Presence of excessive sperm numbers at the A.I. junction. C. Both D. Neither 2 5. An enzyme responsible for breaking down the follicle wall (e.g., theca) during ovulation is: A. Acrosin. B. Collagenase. C. Cystorelin. D. Zona Lysin. 6. Which hormone is commonly used first for treatment of follicular cysts in cows? A. Lutalyse (PGF2α). B. Follicle-stimulating hormone. C. Factrel (GnRH). D. Oxytocin. 7. The layers that a sperm needs to penetrate during fertilization include: A. Cumulus cells. B. Zona Pellucida. C. Both. D. Neither. 8. The average fertile lifespan of spermatozoa for most farm animals is: A. about 2-3 days. B. about 24 hours. C. about 12 hours. D. about 2-3 hours. 9. The main zona pellucida sperm receptor/binding protein is called: A. Zona pellucida protein-1 (ZP-1). B. Zona pellucida protein-3 (ZP-3). C. Acrosin. D. Plasminogen activator.