Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 51, Problem 14TYU
Summary Introduction
To explain: The reason why not all teratogenic medications are banned by the U.S. Food and Drug Administration.
Introduction: The Food and Drug Administration (FDA) of the United States is mainly responsible for safe health of the public. The food products and drugs sold in the market first need to be approved by the FDA. All the drug trials and the drugs produced in the country are not eligible for sale unless the FDA approves it. This organization ensures that all drugs and food products are safe for public use.
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A rare genetic disorder in males causes a defect in testosterone production within the testes which can then lead to an absence of puberty and infertility. The defective cell type in this genetic disorder is:
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in your own words:
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Chapter 51 Solutions
Biology (MindTap Course List)
Ch. 51.1 - Prob. 1LOCh. 51.1 - Prob. 2LOCh. 51.1 - Prob. 1CCh. 51.1 - Prob. 2CCh. 51.2 - Prob. 3LOCh. 51.2 - Prob. 4LOCh. 51.2 - How do the mechanisms of fertilization ensure...Ch. 51.2 - Prob. 2CCh. 51.3 - Prob. 5LOCh. 51.3 - Contrast early development, including cleavage, in...
Ch. 51.3 - Prob. 1CCh. 51.3 - Prob. 2CCh. 51.3 - How do the amount and distribution of cytoplasm in...Ch. 51.4 - Identify the significance of gastrulation in the...Ch. 51.4 - Prob. 1CCh. 51.4 - How do the amount and distribution of yolk...Ch. 51.5 - Prob. 8LOCh. 51.5 - Prob. 9LOCh. 51.5 - Prob. 1CCh. 51.5 - Prob. 2CCh. 51.5 - Prob. 3CCh. 51.6 - Give the origins and functions of the chorion,...Ch. 51.6 - What are the roles of the chorion and amnion in...Ch. 51.6 - What are the functions of the allantois and yolk...Ch. 51.7 - Prob. 11LOCh. 51.7 - Prob. 12LOCh. 51.7 - Prob. 1CCh. 51.7 - How does the placenta form, and what is its...Ch. 51.7 - During which trimester does the cerebrum develop...Ch. 51.7 - Prob. 4CCh. 51 - The mechanism that leads directly to morphogenesis...Ch. 51 - Prob. 2TYUCh. 51 - Prob. 3TYUCh. 51 - Prob. 4TYUCh. 51 - Meroblastic cleavage is typical of embryos formed...Ch. 51 - Prob. 6TYUCh. 51 - Which of the following are mismatched? (a)...Ch. 51 - Prob. 8TYUCh. 51 - An unidentified substance (or substances) released...Ch. 51 - Which of the following consists of both fetal and...Ch. 51 - Prob. 11TYUCh. 51 - Prob. 12TYUCh. 51 - Prob. 13TYUCh. 51 - Prob. 14TYUCh. 51 - Prob. 15TYUCh. 51 - Prob. 16TYUCh. 51 - Prob. 17TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
In the fertility awareness method of birth control, a woman gauges her monthly fertile period by monitoring changes in the consistency of her vaginal mucus. What kind of information does such a method provide about the likelihood of getting pregnant?
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Which of the following structure is controlling the rate of spermatogenesis?
a.Sertoli cells
b.Leydig cells
c.Spermatogonium
d.Spermatids
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Which of the following statements correctly describes the function of the Sertoli cells?
a.
Stimulate spermatogenesis
b.
Support the developing sperm cells
c.
Control the overproduction of testosterone
d.
Store testosterone in the testes
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If human fetus were exposed to very low levels of both testosterone and estrogen during prenatal development, how would the sexual anatomy appear? Why?
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How do teratogens cause birth defects?
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Which of these has the largest amount of DNA?
a. Spermatogonial cells
b. Primary spermatocyte
c. Secondary spermmatocyte
d. Sertoli cells
e. First polar body
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In cryptorchidism, one or both testes of an infant have not descended into the scrotal sac by the first birthday. In these cases, the testes are surgically descended. Why must the testes be descended if the later fertility of the child is to be maintained?
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In humans every males gamete contains ?
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Why testes of human males are considered extra abdominal? What is the significance of this condition?
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In a possible future scenario, male fertility drops to zero,
but, luckily, scientists develop a way for women to pro-duce babies by virgin birth. Meiocytes are converted di-rectly (without undergoing meiosis) into zygotes, which
implant in the usual way. What would be the short- andlong-term effects in such a society?
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If spermatogenesis is normal and all cells survive, how many sperm cells will be formed from 100 spermatogonia?
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Name the hormones involved in regulation of spermatogenesis.
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