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Lecture Notes for BIOSC 222 - HUMAN ANAT PHYS I with Cummings at Clemson (Clemson)

Notes Information

Material Type:Note
Professor:Cummings
Class:BIOSC 222 - HUMAN ANAT PHYS I
Subject:BIOLOGICAL SCIENCES
University:Clemson University
Term: 2010
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RNA CELL REPLICATION *tRNA: carries amino acid to the site of protein synthesis *rRNA: subunits of ribosomes ? site of protein synthesis *mRNA: leaves nucleus and has template for amino acid ? sequence of amino acid: codon Transcription : production of mRNA from DNA -With the help of transcription factors, RNA polymerase binds to the promoter, pries apart the two DNA strands, and initiates mRNA synthesis at the start point on the template strand. -As the RNA polymerase moves along the template strand, elongating the mRNA transcript one base at a time, it unwinds the DNA double helix before it rewinds the double helix behind it. -mRNA synthesis ends when the termination signal is reached. RNA polymerase and the mRNA transcript are released. Translation : mRNA to make protein -After mRNA synthesis in the nucleus, the mRNA leaves the nucleus and attaches to a ribosome. -Translation begins as incoming aminoacyl-tRNA recognizes the complementary codon calling for it at the A...
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