Inquiry into Life
16th Edition
ISBN: 9781260482638
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 22, Problem 6A
The Identity of each segment of a development embryo is controlled by:
- fate map
- grey crescent
- homeotic genes
- the blastocyst
- None of these are correct
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Although having an X and a Y chromosome at conception typically leads to the development of testes during prenatal development, this may not lead to typical male genitalia if certain hormones are present later in development
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Chapter 22 Solutions
Inquiry into Life
Ch. 22.1 - Identify the major structures of a sperm cell and...Ch. 22.1 - Describe the steps involved in fertilization.Ch. 22.1 - Describe the cellular, tissue, and organ stages of...Ch. 22.1 - Outline the steps of fertilization, beginning with...Ch. 22.1 - Describe two ways that an oocyte avoids...Ch. 22.1 - Compare and construct the cellular and tissue...Ch. 22.1 - Identify the organ system that are formed from...Ch. 22.2 - Explain how cellular differentiation and...Ch. 22.2 - Explain how cytoplasmic segregation and induction...Ch. 22.2 - Describe how morphogen genes, homeotic genes and...
Ch. 22.2 - Describe two process that are associated with...Ch. 22.2 - Define the term “morphogen”.Ch. 22.2 - Explain the function of the homeobox sequence in a...Ch. 22.3 - Identify the extraembryonic membranes and provide...Ch. 22.3 - Summarize in chronological order, the major events...Ch. 22.3 - Describe the flow of blood in a fetus and explain...Ch. 22.3 - Besides tobacco, alcohol, and illegal drugs what...Ch. 22.3 - Prob. 1CYPCh. 22.3 - Summarize the major events by month during fetal...Ch. 22.3 - Describe the path of blood flow in the fetus...Ch. 22.3 - Explain the function of the placenta.Ch. 22.4 - Describe changes that occur in Indian psychology...Ch. 22.4 - Outline the stages of birth.Ch. 22.4 - Summarize the advantages of breast-feedingCh. 22.4 - Describe the psychological changes that occur in a...Ch. 22.4 - Identify the stage of parturition in which the...Ch. 22.4 - Define colostrum, and least three advantage of...Ch. 22.5 - Describe the factors that contribute to aging.Ch. 22.5 - Discuss the effects of aging on various body...Ch. 22.5 - What is the rule of the hippocampus, and how does...Ch. 22.5 - How might anti-inflammatory drugs slow the...Ch. 22.5 - Explain how telomeres influence cellular aging.Ch. 22.5 - Summarize how that may contribute to aging.Ch. 22.5 - Summarize the diseases that are associated with...Ch. 22 - Prob. S5.4BYBCh. 22 - Figure 21.3 and 21.7 What are the difference...Ch. 22 - Section 21.2 and 21.3 Where does fertilization...Ch. 22 - Only one sperm enters an egg because Sperm have an...Ch. 22 - The fusion of a sperm and then it will initially...Ch. 22 - Which primary germ layer is not correctly matched...Ch. 22 - Which process is responsible for the shape and...Ch. 22 - The ability of one embryonic tissue to the...Ch. 22 - The Identity of each segment of a development...Ch. 22 - Prob. 7ACh. 22 - Prob. 8ACh. 22 - Prob. 9ACh. 22 - Prob. 10ACh. 22 - Which of the following is increased in the mother...Ch. 22 - Prob. 12ACh. 22 - Prob. 13ACh. 22 - Mitochondria contain their own genetic material....Ch. 22 - Prob. 2TCCh. 22 - 3. Variety of fertility tests are available for...
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- Early Embryonic Development Match the following terms to the descriptor. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. Organogenesis Hollow ball of cells Gastrulation Formation of organs Cleavage Rapid cell division Cells rearrange themselves into layers Blastulaarrow_forwardIn the development of a "three-parent baby", the third parent donates which of the following? nuclear DNA sperm egg mitochondria only egg with the nucleus removedarrow_forwarddescribe at least 2 specific examples of a developmental process that include molecules from the category as a component. Specify the molecule involved in each category (e.g. ECM: collagen, CAMs: cadherins, Cell junctions: desmosomes). Include images to illustrate the process. Category Developmental Process Image ECM 1 2arrow_forward
- Cell to cell interactions Cell movement Cell differentiation These are the optionsarrow_forwardWhat statement best describes the difference between "fate maps" and "specification"? If cells are transplanted from their normal region in an embryo to a different region in a recipient embryo, such cells will alter their fate, but not their specification. Cell fate map describes the allocation of cells to the germ layers, ectoderm, mesoderm, or endoderm, whereas specification describes the exact tissues that each cell will ultimately become. The fate map of an embryo does not change during development -- the fate map of an egg is the same as the fate map of a late blastula -- whereas the specification map of an embryo changes continually as the embryo's development proceeds. The fate map of a cell is determined by labelling that cell and following it during normal development, whereas the specification state of a cell is determined by culturing a cell in an artificial medium and observing what tissues form from it.arrow_forwardNorms of reaction describe an embryo’s inherited ability to develop a range of phenotypes. The environment can play a role in selecting which phenotype is expressed Discuss in 5-6 sentencesarrow_forward
- --------------- A. Answer the following questions briefly (3-5 sentences only).1. How are the three axes for symmetry in the animal bodies established?2. Explain how the different germ layers give rise to different tissue types.3. Explain the role of axis formation in development B. write down the autapomorphic traits for the c3, c4, CAM plants and include their distinct environments Link: https://www.nature.com/scitable/knowledge/library/the-ecology-of-photosynthetic-pathways-15785165/arrow_forwardThere are 6 major events in fertilization. Discuss the process of fertilization or conception, with emphasis on the sperm-egg interaction. Proteins on the sperm plasma membrane bind to ZP3 molecules within the zona pellucida of the egg. Why is this event important? Zona binding triggers the acrosome reaction, in which the sperm plasma membrane fuses with the outer acrosomal membrane, causing exocytosis of acrosomal contents. What is in the "acrosomal content"? Acrosomal enzymes begin to dissolve a hole in the zona pellucida. This enzymatic degradation, accompanied by rapid sperm tail beating, moves the sperm through the zona. Where does the sperm intend to reach?arrow_forwardComplete the following table with the functions of each of the embryonic membranes: Embryonic Membrane Function Yolk sac Chorion & Chorionic villi Allantois Amnionarrow_forward
- ARRANGE THE FOLLOWING EVENTS IN CORRECT SEQUENCE from 1-13: Penetration of the zona pellucida Cortical reaction 1st cleavage Acrosomal membranes rupture, and release their enzyme contents Penetration of the corona radiata Depolarization of egg membranes Migration of cortical cytoplasm to form gray crescent Sperm attach loosely on the zona pellucida Zona reaction Oocyte completes meiotic division ZP3 tenaciously binds acrosome-intact sperm Release of Ca+2 in egg cytoplasm from its bound state Amphimixisarrow_forwardWhat are morphogens, exactly? Explain how they affect the patterning of tissue throughout embryonic development. Give 4 concrete instances to back up your claims.arrow_forwardThe normal sequence of developmental stages is... Group of answer choices blastocyst--> morula--> zygote--> embryo--> fetus. morula--> fetus--> embryo--> blastocyst--> zygote. morula--> zygote--> fetus--> blastocyst--> embryo zygote--> morula--> blastocyst--> embryo--> fetus blastocyst--> zygote--> embryo--> morula--> fetus.arrow_forward
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