Exam 19: Differential Gene Expression in Development

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The gene _______ encodes a transcription factor involved in the conversion of undifferentiated muscle precursor cells called _______ into muscle fibers.

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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 statement about determination is true?

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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?

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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?

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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. 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?

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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. 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 -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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Cell differentiation

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Use the following to answer questions: The diagram below shows different patterns of expression in a Drosophila embryo. 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. -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.

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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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