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Ch. 9 How Genes Work Ch. 9-1 Understanding DNA How Scientists Identified the Genetic Material Scientists knew that chromosomes were involved in the transmission of traits…

Immunology Unit Department of Pathology Complement The complement system consists of about 20 proteins in normal human serum They are synthesized mainly by the liver Complement…

Bacteria and Viruses Chapter 18 E. Coli What is a Virus? Nonliving particle—Why not alive? No respiration Doesn’t grow or develop Need a host to replicate Composed of…

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细菌粘附到宿主细胞 Bacterial Adhesion to Host Cells 赵 蔚 部分病原菌的组织嗜性 病原菌 组织 Neisseria meningitidis 鼻咽上皮细胞 Neisseria gonorrhoeae…

DNA What is the major component of all cells? Why would protein synthesis be important? cellular structures enzymes cell membrane structures organelles direct all other cellular…

BIOLOGY OF BACTERIA Last day Brief introduction to bacteria, Archaebacteria, and bacterial culturing media. Today We will start by looking at our cultures, and providing…