ls2M2sampleQ - LS2 Exam 2 Sample Questions Dr Simmons...

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LS2 Exam 2 Sample Questions 1 Dr Simmons Multiple choice 1. 1. The sperm contributes _______ to the zygote. a. a nucleus b. half of the mitochondria and a nucleus c. a centriole and a nucleus d. cilium and a nucleus e. All of the above 2. Gastrulation is the stage of development a. when neural tube formation begins. b. that makes possible the inductive interactions that trigger differentiation and organ formation. c. that follows the formation of the three germ layers. d. that precedes cleavage. e. that is marked by a dramatic increase in the rate of mitosis. 3. In general, all cell signaling causes a. increased expression of genes. b. an influx of ions. c. protein kinase activity. d. G protein activation. e. a change in receptor conformation. 4. Vitamin A is a relatively small, lipid-soluble molecule that can behave as a hormone. Based on what you have learned, which of the following would you predict about its receptor? a. It would be an ion channel receptor.
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This note was uploaded on 11/28/2011 for the course LIFE SCIEN 2 taught by Professor Soliman during the Spring '10 term at UCLA.

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ls2M2sampleQ - LS2 Exam 2 Sample Questions Dr Simmons...

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