BIOLOGY: CONCEPTS AND INVESTIGATIONS,
5th Edition
ISBN: 9781266382307
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 35, Problem 12WIO
Summary Introduction
To determine:
The reason for pre-embryo needs corpus luteum.
Introduction:
The reproductive systems of males and females are composed of gonads that contain germ cells that form gametes. Spermatogenesis is the process of production of sperm cells in males and oogenesis is the process of the formation of eggs in females.
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If the ovum is not fertilized, the corpus luteum regresses, and the endometrium sloughs off to result in the first day of menstrual bleeding. The latter event would be duplicated, even if fertilization occurred, if receptors for which of the following hormones were occupied by an antagonist?
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Chapter 35 Solutions
BIOLOGY: CONCEPTS AND INVESTIGATIONS,
Ch. 35.1 - Prob. 1MCCh. 35.1 - Prob. 2MCCh. 35.1 - Prob. 3MCCh. 35.2 - Prob. 1MCCh. 35.2 - Prob. 2MCCh. 35.2 - Prob. 3MCCh. 35.2 - Prob. 4MCCh. 35.3 - Prob. 1MCCh. 35.3 - Prob. 2MCCh. 35.3 - How do hormones regulate the ovarian and menstrual...
Ch. 35.4 - Prob. 1MCCh. 35.4 - Prob. 2MCCh. 35.4 - Prob. 3MCCh. 35.5 - What are the events of fertilization?Ch. 35.5 - What are the relationships among the zygote,...Ch. 35.5 - What is implantation, and when does it occur?Ch. 35.5 - Prob. 4MCCh. 35.5 - Prob. 5MCCh. 35.5 - What are the events of the second and third...Ch. 35.5 - Prob. 7MCCh. 35.6 - Prob. 1MCCh. 35.6 - Prob. 2MCCh. 35.6 - Prob. 3MCCh. 35.7 - Prob. 1MCCh. 35.7 - Prob. 2MCCh. 35 - Prob. 1MCQCh. 35 - Which hormones play central roles in both male and...Ch. 35 - Prob. 3MCQCh. 35 - Why can't a fertilized polar body develop into a...Ch. 35 - Prob. 5MCQCh. 35 - Prob. 6MCQCh. 35 - What is the correct order of structures to develop...Ch. 35 - A chemical that can cause a birth defect is a a....Ch. 35 - Prob. 1WIOCh. 35 - Prob. 2WIOCh. 35 - Prob. 3WIOCh. 35 - Prob. 4WIOCh. 35 - Prob. 5WIOCh. 35 - Prob. 6WIOCh. 35 - Is each of the following cell types haploid or...Ch. 35 - Prob. 8WIOCh. 35 - Prob. 9WIOCh. 35 - What would happen if two sperm fertilized the same...Ch. 35 - Prob. 11WIOCh. 35 - Prob. 12WIOCh. 35 - Prob. 13WIOCh. 35 - Prob. 14WIOCh. 35 - Prob. 15WIOCh. 35 - Prob. 16WIOCh. 35 - Prob. 17WIOCh. 35 - Prob. 18WIOCh. 35 - Prob. 19WIOCh. 35 - Review the Survey the Landscape figure in the...Ch. 35 - Add ovulation to the concept map. What hormonal...Ch. 35 - Add the terms placenta, follicle, polar body,...
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Similar questions
- Why does corpus luteum stay active throughout pregnancy and in the absence of fertilization, is active only for 10-12 days?arrow_forwardWhich of the following is TRUE about the mechanism of sex determination? A) The product of the SRY gene converts the bipotential gonads into testes. B) The development of an ovary is conditioned by the presence of two X chromosomes. (C) Testosterone promotes the degeneration of the Mullerian duct. D. The ovary produces a Wolffian inhibition factor that causes the Wolffian duct to degenerate. E) The "feminization" of accessory sex orgarts is promoted by the ovary.arrow_forwardAfter fertilization the blastocyst develops three germ layers. Which germ layer is the innermost layer?arrow_forward
- What stimulates the completion of meiosis Il in a secondary oocyte? O a) A surge of Follicle-Stimulating Hormone (FSH) following the degeneration of the corpus luteum O b) A surge of Luteinising Hormone (LH) on day 13 of the menstrual cycle O) Sperm-egg binding at fertilisation d) Sperm-zona pellucida binding at fertilisationarrow_forwardList two important functions of gonads.arrow_forwardDescribe the development of an oocyte from primordial follicle to when it is released at ovulation. How do hormones contribute to this progression? Describe the development of a spermatogonia to a spermatozoa. How do hormones contribute to this progression? What is the function of Sertoli and Leydig cells?arrow_forward
- Which of the following is required for successful fetal development after the egg has been fertilized? a) That the corpus luteum remains throughout the pregnancy b) Production of estrogen (estradiol) and progesterone from the placenta c) Release of hCG (human chorionic gonatotropin) from the placentaarrow_forwardWhat means to retain the ability to become any cell type—including germ-line cells and gametes—when exposed to the appropriate signals in a developing embryo?arrow_forwardList the hormones responsible for oogenesis, and explain each hormone’s effect on oogenesis.arrow_forward
- What immediate effect does the SRY gene have on a developing fetus? A) It directs the gonads to develop into testes. B) It directs the gonads to develop into ovaries. C) It directs the Müllerian ducts to develop into female internal reproductive structures.arrow_forwardReproductive physiology (human) a) At the time of ovulation, the released ovum (egg) has completed both meiosis I and meiosis II. b) Because the corpus luteum (CL) is rescued from atresia by hCG early in pregnancy, the CL continues to produce progesterone throughout the 9 months of a normal pregnancy. c) Late in the follicular phase, estrogen participates in a positive feedback loop that leads to a surge in luteinizing hormone and ovulation. d) Both (a) and (b) are correct and (c) is incorrect e) Statements (a), (b) and (c) are all correctarrow_forwardFor successful reproduction to occur, various gonadotrophic hormones need to be involved. What hormones are produced and what are their roles in oocyte development, ovulation, fertilization, implantation, and embryonic survival?arrow_forward
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