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Lecture 2

Lecture 2 Biological.docx

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Shawn Lehman

ANT100September 29 2011LECTURE 2 PRINCIPLES OF EVOLUTIONModern Synthesis of Evolution phenotypes physical make up genes and populationsmicroevolution macroevolution DNARNAPROTEINCELL Somatic cells most cells in body except sex cells Gametes sex cells Cytoplasm complex mix of membranes molecules and tiny structures called organelles Nucleus contains hereditary material known as chromosomesCHROMOSOMESpaired rod shaped structures in cell nucleus containing genes that transmit traits from generation to generation molecules strung together unwind results in strings of DNADNA Deoxyribonucleic Acid nucleic acid used to store genetic information that codes for the synthesis of proteinsFour bases Adenine A Guanine G Cytosine C Thymine T AT go together CG go together sugar phosphate backbone hydrogenbonded basesRNA Ribonucleic Acid dictates synthesis of proteins that perform a wide variety of functions in body regulates expression of other genes works with structures in cell ribosomes that are critical for manufacture of proteins transport amino acids to ribosomes for the creation of proteinsdetermines how genes are expressed based on which protein is created which code in DNAA G C Uracil UPROTEINlinear sequences of amino acids building blocks of cells each protein has specific function determined by blueprint stored in DNAcatalysis of all biochemical reactions is done by enzymes which contain protein and many moreDNAPROTEIN PRODUCTION replication
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