SE day 4 - Social Evolution Lecture Outline February 1 2012 Genetics Four Basic Questions 1.How genetic information is stored and preserved

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Social Evolution Lecture Outline February 1, 2012 Genetics Four Basic Questions 1.How genetic information is stored and preserved • components of the cell- cytoplasm (intracellular organelles like mitochondria and nucleus) -DNA- double stranded molecule, contains the genetic code, primary component of chromosomes, backbone of alternating sugar and phosphate, each sugar has one of four bases attached to it -Base pairs- adenine, thymine, cytosine, guanine -Each base can only bond with one of the other three A-T has to hydrogen bonds, C-G has three hydrogen bonds -Sequences of bases on one strand determine sequences on the complemetary strand, arranged in a twisting double helix DNA replication - Watson and Crick (1953) information passed on to daughter cells by disengaging into two independent single strands. -A can only bond with T so C can only bond with G -Each strand serves as a template to create a new double helix -Consistency in transferring of genetic information 2.Building of an organism - translating the DNA code • Mendel’s work was rediscovered in 1901 genes influence phenotype through the production of enzymes GENE – sections of DNA strand that code for a polypeptide POLYPEPTIDE – (amino acids) components of proteins, enzymes and hormones are examples DNA – codes for amino acids in triplets (codons) PROTEIN SYNTHESIS – DNA creates an intermediate form (messenger RNA) through transcription, occurs in the nucleus -mRNA moves into cytoplasm and synthesizes protein molecule through translation in
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This note was uploaded on 02/04/2012 for the course SOC EVO 204 taught by Professor Jacobson during the Spring '12 term at Rutgers.

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SE day 4 - Social Evolution Lecture Outline February 1 2012 Genetics Four Basic Questions 1.How genetic information is stored and preserved

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