4. Notice that each hormone is represented by a specific color. Make a prediction based on observations from the diagram. Which two hormones do you think allow for ovulation? Justify your answer. 5. Make a prediction: Based on what you know about the hormones that control the menstrual cycle. a. How could you manipulate these hormones to stop ovulation? b. What's the impact of stopping ovulation?

4. Notice that each hormone is represented by a specific color. Make a prediction based on observations from the diagram. Which two hormones do you think allow for ovulation? Justify your answer. 5. Make a prediction: Based on what you know about the hormones that control the menstrual cycle. a. How could you manipulate these hormones to stop ovulation? b. What's the impact of stopping ovulation?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter50: Animal Development

Section: Chapter Questions

Problem 8TYK: In the development of the female sex organs: a. all ducts in the 7-week embryo become Wolffian...

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What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst? Tire cells would not continue to divide. Tire corpus luteum would continue to produce progesterone and estrogen. Menses would flush the blastocyst out of the uterus. Tire uterine mucosa would not envelop the blastocyst.
Figure 18.12 Which of the following statements about the male reproductive system is false? a. The vas deferens carries sperm from the testes to the seminal vesicles. b. The ejaculatory duct joins the urethra. c. Both the prostate and the bulbourethral glands produce components of the semen. d. The prostate gland is located in the testes.
1.This will stimulate the ovary to start the development of an egg cell and the secretion of estrogen. A. Follicle-stimulating hormone (FSH) B. Gonadotropin-releasing hormone (GnRH) C. Luteinizing hormone (LH) D. Prolactin 2. Which of the following is the negative feedback effect of ovaries losing sensitivity to FSH and LH? A. higher fertility rate B. an increase in production of estrogen. C. irregular cycle of ovulation and menstruation D. increase follicular development and ovulation.
1. If there are around 200M point spermatozoa in the seminal fluid, estimate how many spermatocytes was present during spermatocytogenesis? A. 50 spermatocytes B. 100 spermatocytes C. 150 spermatocytes D. 200 spermatocytes 2. Five spermatocyte can give rise to A. 5 spermatozoa B. 10 spermatozoa C. 15 spermatozoa D. 20 spermatozoa
1. Predict the fertilization problems if the Ca+2 wave gets blocked?2. One of the goals of modern-day pharmacology is to develop a male contraceptive.Go through the steps of fertilization and determine what steps do you think it might be possible to block pharmacologically in order to produce such a contraceptive for males?
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KW. is 16 years old and has experienced oligomenorrhea (infrequent menstruation) for several years. Endocrine screening shows she has high levels of free testosterone and a LH.FSH ratio of 3:1. a) Is KW. ovulating? How do you know? b) Why is she not menstruating normally? How does her LH FSH levels affect follicle development and menstruation.
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1. Briefly describe follicular development during the human ovarian cycle and how this is coordinated with the uterine cycle. 2. What assumptions are made if the number of CL is used as an indicator of reproductive rate? 3. What do you think would happen to a CL in a species that exhibits diapause (consult your textbook on this)? 4. Where are sperm made (be specific here) and what glands are important for making seminal fluid? 5. Why do the sperm “cork-screw” while swimming? 6. The menstrual cycle provides an example of how endocrine biological clocks regulate reproduction. Can you give TWO other examples?
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