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Published byBetty Jordan Modified over 9 years ago
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DNA TO RNA Transcription is the process of creating a molecule that can carry the genetic blueprint for a particular protein coding gene from the DNA in the nucleus to the ribosomes found outside the nucleus.
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RESEARCHERS HAVE CONFIRMED THE EXISTENCE OF 19,599 PROTEIN- CODING GENES IN THE HUMAN GENOME AND IDENTIFIED ANOTHER 2,188 DNA SEGMENTS THAT ARE PREDICTED TO BE PROTEIN-CODING GENES.
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CHROMOSOMES ARE FOUND IN THE NUCLEUS
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Chromosomes are made of DNA and Protein. Genes are a segments of DNA that tells a cell how to make different proteins
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RIBOSOMES THE ORGANELLE THAT JOINS AMINO ACIDS INTO PROTEINS.
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GETTING THE PROTEIN INSTRUCTIONS FROM THE DNA TO THE RIBOSOME
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RNA CAN LEAVE THE NUCLEUS THROUGH NUCLEAR PORES AND TRAVEL TO RIBOSOMES
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RNA STRUCTURE LIKE DNA…RNA IS MADE OF NUCLEOTIDES
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RNA THE 4 NITROGEN BASES AND RIBOSE SUGAR
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BASE PAIRING RULES
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TRANSLATION HAS 3 STEPS
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DETAILS
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TRANSCRIPTION VIDEOS http://www.dnatube.com/video/5763/DNA-Transcription-animation http://www.dnatube.com/video/5763/DNA-Transcription-animation http://www.dnatube.com/video/29711/How-Genes-are-Expressed-with- Transcription-Factors http://www.dnatube.com/video/29711/How-Genes-are-Expressed-with- Transcription-Factors http://www.dnatube.com/video/29706/Paired-DNA-strands http://www.dnatube.com/video/29706/Paired-DNA-strands http://highered.mheducation.com/sites/9834092339/student_view0/chap ter15/stages_of_transcription.html http://highered.mheducation.com/sites/9834092339/student_view0/chap ter15/stages_of_transcription.html
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RNA PROCESSING DNA contains non-coding regions called introns. These may be viral DNA or genes that are no longer used by the cell. The coding regions of DNA are called Exons. RNA processing is a process that removes the introns and joins the exons. The resulting molecule is called mRNA [messenger RNA]
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REMOVING INTRONS WITH SPLICEOSOMES
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FROM GENE TO PROTEIN http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::535::5 35::/sites/dl/free/0072437316/120077/bio30.swf::How+Spliceosomes+Pr ocess+RNA http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::535::5 35::/sites/dl/free/0072437316/120077/bio30.swf::How+Spliceosomes+Pr ocess+RNA
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