'Rna rna' presentation slideshows

???? RNA ?????

???? RNA ?????. DNA ?? RNA ???? RNA DNA RNA. RNA ?????. ??? transcription?? ??? DNA ?????????? RNA ????????????? RNA ???( DNA ??? RNA ??? ? ????? mRNA ?rRNA? tRNA? ? RNA

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???? RNA ?????

???? RNA ?????. DNA ?? RNA ???? RNA DNA RNA. RNA ?????. ??? transcription?? ??? DNA ?????????? RNA ????????????? RNA ???( DNA ??? RNA ??? ? ????? mRNA ?rRNA? tRNA? ? RNA

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Chapter 7: RNAi and miRNA regulation

Chapter 7: RNAi and miRNA regulation. Outlines The background and discovery of miRNAs RNAi discovery and mechanism miRNA biogenesis and regulation miRNA roles in development, cell differentiation and virus miRNA in cancer siRNA application. ?? miRNA ?????? miRNA ??.

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Welcome Each of You to My Molecular Biology Class

Welcome Each of You to My Molecular Biology Class. Molecular Biology of the Gene, 5/E --- Watson et al. (2004). Part I: Chemistry and Genetics Part II: Maintenance of the Genome Part III: Expression of the Genome Part IV: Regulation Part V: Methods. 2005-5-10.

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?2? ?????????

?2? ?????????. ?2? ???????. DNA ? 27 ??. ???. ??? ????????? DNA ?????. ??? ? 66 ??. ????. RNA ? 6 ??. ????. ??????. ?????. DNA ?????????. DNA ?????. ???? ????? antiparallel? ?????????? ?????????? hydrogen bond? ??????? A ? T?C ? G ???????0.34 nm ?????3.4 nm ?10 bp? ??2 nm

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???

???. ?????????. ????. DNA ????????. ????????. DNA ???????????? DNA ??????????????????????? RNA ? mRNA ????. ??????. ?. DNA. ?????. mRNA. ???. ?????. ?????. ???????. DNA ????????. ?? DNA ?? m RNA ?. ??????????????????????????????????????? mRNA ?????????????????.

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17 RNA ???????

17 RNA ???????. ?????? RNA ?????? ? RNA ??????? RNA ??? ??????. ??? DNA ??? RNA ??????? ??? RNA ????? ??? RNA ??? RNA ??? (RNA ??? ) ??? ??????????. ?? ?. ??. ??. DNA. ??. ???. ???. RNA. ??. ??. ??????? ????.

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Chapter 6

Chapter 6. ??????. ? ?. 6.1 ???????? 6.2 ???????? 6.3 ????????????? 6.4 ?? RNA ???. ????????. ?. 6.1 ????????. ? ??? (ribosome) ?????? ??????? (ribonucleoprotein partical), ???? ????? ????? ? ??????????? ????????????????? 40% ??????????????????

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2008 ??????????????? ?????????

2008 ??????????????? ?????????. A1 ???????????? A ? B ? C ? D ? E ??????????????????? 16. ????????? A. Asp ? Gln B.Asp ? Gly C. Asp ? Glu D.Arg ? Lys E. Arg ? Pro. 3. ?????. ???? aspartic acid Asp D 2.97. ??? glutamic acid Glu E 3.22.

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RNA ????

RNA ????. ?? ??? ???. 2006 ???????????? ??????? Andrew Z ? Fire ???????? Craig C ? Mello ? ???????? RNAi ??. ??? RNAi ?. ?? RNAi ??? ?? RNAi ????? ?? RNAi ????????? ?? RNAi ????. ?? RNAi ???. RNAi ???. Post Transcriptional Gene Silencing in Petunia. WT.

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Progress of Research

Progress of Research. genome. Genomic sequence ? Polymorphism ? SNP etc ?. Transcriptome. Gene transcription profile. Proteome. Expression profile of proteins. Functional proteome Metabolome. Genetic function Post translational modification Protein interation etc.

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AP Biology

AP Biology. Lecture #31 Central Dogma. Central Dogma. DNA. Replication. Reverse Transcription. Transcription. RNA. Translation. Protein. But how is DNA copied?. Replication of DNA base pairing suggests that it will allow each side to serve as a template for a new strand.

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? 14 ? RNA ????? ---- ?? RNA Biosynthesis----Transcription

? 14 ? RNA ????? ---- ?? RNA Biosynthesis----Transcription. ?? ???? ???????????? ????????? ??????. ??? transcription ? ? DNA ????? RNA ???? RNA polymerase ??????? mRNA ??????? DNA ?????? mRNA ?????????????. 1 ????????????.

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? 14 ? RNA ????? - ?? RNA Biosynthesis--Transcription

? 14 ? RNA ????? - ?? RNA Biosynthesis--Transcription. ??? transcription ? ? ? DNA ????? RNA ??? ? RNA polymerase ??????? mRNA ??????? DNA ?????? mRNA ????????????? transcription ??. 1 ?????????????. ???? DNA ????? RNA, ??????? DNA ?????????????

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??? RNA ?????

??? RNA ?????. DNA ?????????????? RNA ????????? transcription ?? ????? RNA ?????????? DNA ??? RNA ????????????????????? RNA ??? RNA ???????????????????????? RNA ??? RNA precursor ????????? processing ??????????. ????????. ????? DNA ?? ,NTP, ?? Mg2+,Mn2+ ????? 5'?3' ????? -- 3' , 5' ??????

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Lecture 16

Lecture 16. Nucleic Acid Chemistry. Hydrolysis of RNA. Occurs under alkaline conditions. Hydrolysis of RNA. Nucleic Acid Chemistry. Denaturation (increase T). RNA-RNA>RNA-DNA RNA-DNA>DNA-DNA. Nucleotides Absorb UV Light. Base stacking decreases absorption Hypochromic effect.

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9 Future Challenges for Bioinformatics

9 Future Challenges for Bioinformatics. Adapted from an article by: E. Birney, C. Burge, and J. Fickett, Genome Technology , issue 17, Jan. 2002. 9 Future Challenges for Bioinformatics.

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Small RNAs in viral infection and host defense

Small RNAs in viral infection and host defense. ??? 2009-5-20. ? ?. ???????? RNA ?? ?? siRNAs ?????? ?? siRNAs ???????????. Small RNAs. ??????????????????????????????? RNA ??? ?????????????????????????????????????????????? RNA ?? ??

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DNA & RNA

DNA & RNA. Elements that make up each structure of DNA. These elements are Carbon, Nitrogen, Phosphate, Hydrogen , Oxygen Each sugar molecule is covalently linked to one of 4 possible bases ( A denine, G uanine, C ytosine and T hymine.). MONOMERS OF DNA & RNA.

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