Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 32.1, Problem 1CC
Summarize the main stages of animal development. What family of control genes plays a major role?
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Describe the role of master regulators in embryonic development
Discuss the role of homeotic genes in development. Explain what happens to the phenotype of a fruit fly when a gain-of-function mutation in a homeotic gene causes the protein to be expressed in an abnormal region of the embryo. What are the consequences of a loss-of-function mutation in such a gene?
Give examples of genes that affect development in fruit flies by regulating gene expression at the level of (a) transcription and (b) translation.
Chapter 32 Solutions
Campbell Biology
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - VISUAL SKILLS Explain what is represented by the...Ch. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
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- describe direct and indirect development and name some animal groups that have each type of development?arrow_forwardindicate the stage at which segmentation genes, homeotic genes, and egg-polarity genes would have an effect on development.arrow_forwardExplain how cellular differentiation and morphogenesisplay a role in development.arrow_forward
- Which of the following mechanisms could negatively impact embryo development in humans? a mutation in a master regulator transcription factor needed for prefrontal cortex cell formation the introduction of a toxin that alters the genetic regulatory cascade for ovary development proper functioning of morphogens a failure of apoptosis to target the cells that formed "webbing" between the fingers and toes A, B, and D Which of the following likely has the most Hox genes? Jellyfish Slugs Dolphins ) Bees Similar gill pouches in embryos of a chick, human, and cat are an example of ) structural homology ) developmental homology ) genetic homology ) the inheritance of acquired charactersarrow_forwardDo all of them please True/False: 24) Studies of invertebrate and vertebrate development suggest that there is a universal body plan for bilateral animal development.Answer: 25) One of the four overlapping stages in animal development is apoptosisAnswer: 26) The primary interest of genetic research into stem cells is the desire to be able to clone a human being.Answer: 27) Unipotent cells may differentiate into all other cell types of the body.Answer: 28) The reduction of pollutants in the environment by microorganisms is called biodegradation.Answer: 29) A transgenic organism has recombinant DNA integrated into its genome.Answer: 30) An organism that can be regenerated by somatic cells is called multipotent.Answer:arrow_forwardUsing Figure 22.6, indicate the stage at which segmentation genes, homeotic genes, and egg-polarity genes would have an effect on development.arrow_forward
- The toolkit genes generally regulate_____ [A]_____ in order to direct development. Other developmental decisions are regulated _____[B]_____, as we saw in sex determination in flies. *Hint: these are steps in the Central Dogma? Give typing answer with explanation and conclusionarrow_forwardWhat is redeployment in developmental biology?arrow_forwardDefine what Morphogenesis is. And then provide an example that shows how morphogenesis is relevant to developmental biology. Please make the description/example very detailed.arrow_forward
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