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Washington University in St Louis
BIO
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BIO 2960 | Principles of Biology I
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29
Popular Documents from Washington University in St Louis
BIO_2960_PSET_2_1.docx-BIO 2960 PSET 2 1. [OH-]
14. What is a tumor suppressor gene? Key word: gene inactivation, cell cycle brake Tumor suppressor genes are genes that suppress tumor growth by regulating the cell cycle and inducing apoptosis. These genes usually brake the cell in the cell cycle .
bacteria. The nitrogen then gets assimilated back into the plant via air to help it grow. These systems constitute an ecological community because they all involve interactions (in most cases, mutually beneficial) between the microbes and the host/en
HO Lagging vs. leading For DNA replication o Enzymes: pol I and pol III, DNA helicase, DNA ligase o Circular (dsDNA, bacterial plasmids, extra chromonsomal DNA) vs. linear DNA (dsDNA, eukaryotic chromosomes, multiple origins of replication) o Ori
Problem Set 1 1. Are viruses living organisms? Yes and no, depending on what definition of “living organism” you use. Many biologists consider a “living organism” to be one that 1) obtains energy and raw materials from the environment and converts th