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 3TYU
Summary Introduction
Introduction: For successful fertilization, several processes such as the acrosome reaction, capacitation, and other methods occur. It is important that fertilization occurs with great accuracy. To prevent polyspermy, echinoderms such as sea urchins have two mechanisms, the fast block, and the slow block reactions.
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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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- Explain further each number 1. Compare and contrast the sequence of fertilization events that take place in the sea urchin vs. mammals. 2. How do the sperm and egg recognize each other? What molecules are involved?arrow_forwardDescribe the gastrulation by using embryos of the sea star as an example.And describe the way in which the mass of inert yolk influences the gastrulation in bird and frog embryos.arrow_forwardResearchers searched for an activator of neural tissue formation. What is the real pathway for this developmental phenomenon? a. Neural tissue formation occurs via BMP inhibition by proteins secreted from the organizer. b. Noggin activates ectoderm to become neural tissue. c. Nodal activation induces mesoderm to make neural tissue. d. Beta-catenin is required for formation of neural tissue.arrow_forward
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- In comparing external and internal fertilization, what evolutionary change can be seen in the coats of ovulated eggs? Why? What about the sperm? Any changes?arrow_forwardA mammalian embryo puts the trophoblast into a hurried frenzy before it decides to proceed to the business of gastrulation. Is it a Clever move, or an evolutionary blunder? Explain wellarrow_forwardThe epiblast and hypoblast both develop from the inner cell mass cells in the mammalian embryo. The hypoblast becomes a specific structure that is known by two different names. What is this structure? Provide both names. 1. The hypoblast becomes the: ___________________ 2. The hypoblast becomes the: ____________________ Provide the name of the structure that is where gastrulation begins in each animal model. In the case of the frog and fish, this structure is known by two different names – there is a space below to provide each name. 1. Xenopus (frog): ___________________ 2. Xenopus (frog): ____________________ 3. Zebrafish: ____________________ 4. Zebrafish: ____________________ 5. Mammals: ____________________arrow_forward
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