LIFE 120- Final Exam Guide - Comprehensive Notes for the exam ( 46 pages long!)

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They can continue to reproduce for an indefinite period. They normally differentiate into only eggs and sperm. They can provide enormous amounts of information about the process of gene regulation. They can give rise to all cell types in the organism. One aim of using them is to provide cells for repair of diseased tissue: question 2. Answers: failure to express maternal effect genes: question 3 phenotypes that prevent fertilization. phenotypes that are never born/hatched. homeotic phenotype changes. death during pupation. Answer: fusion of an adult cell"s nucleus with an enucleated sheep egg, followed by incubation in a surrogate. Answers: inducers homeotic genes morphogens segmentation genes egg-polarity genes: question 5. Muscle cells differ from nerve cells mainly because they. Answers: use different genetic codes: question 6 have unique ribosomes. have different chromosomes. contain different genes. express different genes. Selected answer: the occurrence of mrnas for the production of tissue-specific proteins.