Exam 19: Differential Gene Expression in Development
Exam 1: Studying Life 97 Questions
Exam 2: Small Molecules and the Chemistry of Life145 Questions
Exam 3: Proteins, Carbohydrates, and Lipids145 Questions
Exam 4: Nucleic Acids and the Origin of Life117 Questions
Exam 5: Cells: the Working Units of Life153 Questions
Exam 6: Cell Membranes136 Questions
Exam 7: Cell Signaling and Communication150 Questions
Exam 8: Energy, Enzymes, and Metabolism153 Questions
Exam 9: Pathways That Harvest Chemical Energy154 Questions
Exam 10: Photosynthesis: Energy From Sunlight158 Questions
Exam 11: The Cell Cycle and Cell Division176 Questions
Exam 12: Inheritance, Genes, and Chromosomes150 Questions
Exam 13: Dna and Its Role in Heredity155 Questions
Exam 14: From Dna to Protein: Gene Expression151 Questions
Exam 15: Gene Mutation and Molecular Medicine141 Questions
Exam 16: Regulation of Gene Expression151 Questions
Exam 17: Genomes145 Questions
Exam 18: Recombinent Dna and Biotechnology141 Questions
Exam 19: Differential Gene Expression in Development147 Questions
Exam 20: Development and Evolutionary Change120 Questions
Exam 21: Evidence and Mechanisms of Evolution151 Questions
Exam 22: Reconstructing and Using Phylogenies137 Questions
Exam 23: Species and Their Formation140 Questions
Exam 24: Evolution of Genes and Genomes141 Questions
Exam 25: The History of Life on Earth145 Questions
Exam 26: Bacteria and Archaea: the Prokaryotic Domains156 Questions
Exam 27: The Origin and Diversification of Eukaryotes148 Questions
Exam 28: Plants Without Seeds: From Water to Land144 Questions
Exam 29: The Evolution of Seed Plants141 Questions
Exam 30: Fungi: Recyclers, Pathogens, Parasites, and Plant Partners144 Questions
Exam 31: Animal Origins and the Evolution of Body Plans122 Questions
Exam 32: Protostome Animals146 Questions
Exam 33: Deuterostome Animals150 Questions
Exam 34: The Plant Body132 Questions
Exam 35: Transport in Plants133 Questions
Exam 36: Plant Nutrition134 Questions
Exam 37: Regulation of Plant Growth137 Questions
Exam 38: Reproduction in Flowering Plants140 Questions
Exam 39: Plant Responses to Environmental Challenges131 Questions
Exam 40: Physiology, Homeostasis, and Temperature Regulation146 Questions
Exam 41: Animal Hormones147 Questions
Exam 42: Immunology: Animal Defense Systems150 Questions
Exam 43: Animal Reproduction150 Questions
Exam 44: Animal Development147 Questions
Exam 45: Neurons and Nervous Systems145 Questions
Exam 46: Sensory Systems150 Questions
Exam 47: The Mammalian Nervous System: Structure and Higher Function150 Questions
Exam 48: Musculoskeletal Systems150 Questions
Exam 49: Gas Exchange in Animals149 Questions
Exam 50: Circulatory Systems150 Questions
Exam 51: Nutrition, Digestion, and Absorption149 Questions
Exam 52: Salt and Water Balance and Nitrogen145 Questions
Exam 53: Animal Behavior149 Questions
Exam 54: Ecology and the Distribution of Life150 Questions
Exam 55: Population Ecology123 Questions
Exam 56: Species Interaction and Coevolution131 Questions
Exam 57: Community Ecology133 Questions
Exam 58: Ecosystems and Global Ecology142 Questions
Exam 59: Conservation Biology116 Questions
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The gene _______ encodes a transcription factor involved in the conversion of undifferentiated muscle precursor cells called _______ into muscle fibers.
(Short Answer)
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In the first successful cloning of a sheep, cells from the ewe's udder were modified to become appropriate donor cells. In order for these udder cells to be suitable donor cells, they were
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Which of the following distinguishes the developmental cascade seen in Drosophila melanogaster from a signal transduction cascade?
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Describe one application for human health of multipotent stem cells and one application for human health of cloned mammals.
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Which of the following statements about hematopoietic stem cell transplantation is false?
(Multiple Choice)
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Female Drosophila that are homozygous for the bicoid maternal effect gene mutation produce larvae with no head or thorax. When cytoplasm from the anterior end of a wild-type egg is inoculated into the anterior end of a bicoid mutant egg, the treated egg develops normally. What causes the restoration of normal development in the mutant eggs?
(Multiple Choice)
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The primary inducer of the vulva in C. elegans comes from the _______ cell.
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Which of the following statements about cloned animals is true?
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Using the information in the graph below, draw a diagram showing the concentration of nanos and bicoid mRNA in a Drosophila embryo from the anterior to the posterior ends. 

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Which of the following classes of pattern formation genes is responsible for organizing broad areas along the anterior-posterior axis?
(Multiple Choice)
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Differentiated cells in the process of forming the liver of a mouse provide an example of
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Nucleic acid hybridization was used to test which of the following hypotheses about Hox genes?
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Use the following to answer questions:
The diagram below shows experiments performed to determine whether the fates of cells are irrevocably determined.
-If cell fate were not irrevocably determined, and skin tissue could develop into notochord tissue but not into brain tissue, a normal embryo would develop in

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Which of the following is a technique that can be used to show genomic equivalence?
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Which of the following statements about plant development is false?
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Use the following to answer questions:
The diagram below shows different patterns of expression in a Drosophila embryo.
-A different developmental gene shows the pattern of expression in a Drosophila embryo as shown by part B in the diagram above. Based on this information, this gene most likely belongs to the _______ class of genes.

(Multiple Choice)
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Experiments have shown that fully differentiated cells still contain all their genes, even though they express only a small set of those genes. Which type of hybridizations have demonstrated this? How do such hybridizations work?
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Hox genes, as well as some other types of genes that encode transcription factors, all have a 180-base-pair sequence known as the _______, which encodes a 60-amino-acid sequence known as the _______.
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