Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 35, Problem 4WIO
Summary Introduction
To determine:
The difference between timetables for oogenesis and spermatogenesis in humans.
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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please help
Draw a schematic diagram showing spermatogenesis vis-à-vis oogenesis. Label the stage of development and chromosome number of daughter cells at the following levels of maturation: (a) mitotic proliferation (b) meiosis I and II (c) maturation.
Table 2: Spermatogenesis vis-à-vis Oogenesis
Spermatogenesis
Oogenesis
In vertebrate animals, spermatogenesis and oogenesis differ, in that
1.) Cytokinesis is unequal in oogenesis whereas it i equal in spermatogenesis
2.) spermatogenesis is not completed until after fertilization occurs, but oogenesis is completed by the time a girl is born
3.) Oogenesis produces four haploid cells, whereas spermatogenesis produces only one functional spermatozoon
4.) Oogensis ends at menopause. Whereas spermatogenesis is finished before birth
5.) Oogensis begins at the onset of sexual maturity whereas spermatogenesis happens in embryonic development
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
- Briefly describe the stages of spermatogenesis in human?arrow_forwarddifferentiate the oogenesis and spermatogenesis of chicken and fruitfly.arrow_forwardWhat 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_forward
- explain briefly What is the rationale behind the cleavage stages undergone by the early embryo?arrow_forwardSpermatogenesis and oogenesis both involve meiosis but differ in significant ways. One of those differences include what? A) Cytokinesis is unequal in spermatogenesis B) Production of sperm is continuous; in humans, and the number of future egg cells is set at birth C) Oogenesis is an uninterrupted sequence, but there are long delays in spermatogenesis D) All of the abovearrow_forwardGametogenesis in mammals is a complex process. When comparing spermatogenesis and oogenesis, indicated whether the follow statements are true or false. After the S phase, both the spermatogonial stem cell and primary oocyte have the same number of double-copy chromosomes. #analyze Question 1 options: True False Both the first polar body and the second polar body have the same number of chromosomes. #analyze Question 2 options: True False After the S phase, both the spermatogonial stem cell and primary oocyte have the same number of double-copy chromosomes. #analyze Question 3 options: True False Both the primary oocyte and the secondary spermatocyte have double-copy chromosomes. #analyze Question 4 options: True Falsearrow_forward
- Describe the three manners in which fertilization of human ovum by sperm can be prevented?arrow_forwardFertilization: a) Briefly describe the process of fertilization in humans, b) identifying key aspects that stop sperms from different species to fertilize human oocytes, and c) identifying also key aspects that prevent polyspermy.arrow_forwardExplain why genetic mutations in asexual organisms lead to much more rapid evolutionary change than do genetic mutations in sexual forms. Why might harmful mutations be more deleterious to asexual organisms compared with sexual organisms?arrow_forward
- With regard to early cleavage in the sea urchin, is the entire zygote involved in early cleavage? What happens to the size of cells as the cell number increases? Do they get bigger or smaller in these early stages? How does the size of these cells compare to the size of the original fertilized egg?arrow_forwardDescribe the sequence of events leading from spermatogonia tosperm?arrow_forwardDescribe the events taking place during oogenesis? Match the different phases with meiotic events taking place?arrow_forward
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