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How do viruses differ?
How do viruses differ?

... a. Viral nucleic acid separates from its protein coat. b. Enzymes degrade the proteins of the viral capsid releasing the virus nucleic acid Poliovirus works in this manner C. Replication & Maturation Biosynthesis of Nucleic Acid Virus uses the host system to make new nucleic acid Proteins and capsid ...
Lecture 20  DNA Repair and Genetic Recombination
Lecture 20 DNA Repair and Genetic Recombination

... Modulators of the L1 lifecycle. The L1 amplification cycle can be divided into several steps. (a) Transcription. L1 amplification initiates with transcription, and regulation of L1 at this step can be modified by epigenetic modifications, DNA methylation, and recruitment of transcription factors. (b ...
Lecture 15: Translation and Transcription
Lecture 15: Translation and Transcription

... During translation, the linear sequence of codons along mRNA is translated into the linear sequence of amino acids in a polypeptide a. There is redundancy in the code but no ambiguity i. Redundancy exists because two or more codons differing only in their third base (e.g., UUU and UUC each code for ...
video slide - Saginaw Valley State University
video slide - Saginaw Valley State University

... A A G Anticodon (a) Two-dimensional structure. The four base-paired regions and three loops are characteristic of all tRNAs, as is the base sequence of the amino acid attachment site at the 3 end. The anticodon triplet is unique to each tRNA type. (The asterisks mark bases that have been chemically ...
Composition of splicing complex in chloroplasts identified
Composition of splicing complex in chloroplasts identified

... chloroplasts identified for the first time 2 July 2013, by Dr. Julia Weiler From gene to protein – craftwork required Genes, the bearers of genetic information, contain coding and non-coding regions. To convert a gene into a protein, enzymes first create a copy of the gene, the messenger RNA. A usef ...
Gene silencing: RNA makes RNA makes no
Gene silencing: RNA makes RNA makes no

... homologous sense RNA and thereby provides a target for a double-stranded RNase [4]. It is also possible that the interaction with antisense RNA affects RNA abundance indirectly by interfering with translation or, for viral RNA, by blocking replication. Epigenetics and RNA-dependent RNA polymerase ...
Lecture 27
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... Most metabolic pathways are regulated in part by levels of nucleotides such as ATP and ADP. Nucleotide derivatives like nicotinamide adenine dinucleotide (NADH), flavin adenine nucleotide (FAD) and coenzyme A are required for many reactions. Have catalytic activities in in enzymelike nucleic acids ( ...
RNA Processing: Eukaryotic mRNAs
RNA Processing: Eukaryotic mRNAs

... Eukaryotic RNA Processing: Capping • When the RNA chain is about 30 nucleotides long, the 5’ ends are modified by the addition of a guanine group in the opposite ...
Biomolecule Review Worksheet
Biomolecule Review Worksheet

... Organic molecules have four common characteristics. First, they are all carbon based, meaning they all contain carbon. They are formed from just a few elements which join together to form small molecules which join together, or bond, to form large molecules. The third characteristic of all organic m ...
Algebra 1 - Edublogs
Algebra 1 - Edublogs

...  So, we know WHAT happens – DNA is transcribed into RNA and translated by ribosomes into a protein, but HOW is the RNA code or language (A, U, G, C) translated into the language of aa?  What would you need to translate or decode any language? A dictionary....  Show students codon table from http: ...
Translation
Translation

... Two major stages involved: • The first stage is called transcription – The 2 strands of the DNA molecule unwind and mRNA copies the genetic code (letters A, C, G and T) from DNA, the master molecule. ...
PPT - Bioinformatics.ca
PPT - Bioinformatics.ca

... – ‘Regulatory’ mutations that affect what mRNA isoform is expressed and how much • e.g. splice sites, promoters, exonic/intronic splicing motifs, etc. ...
Ch11_lecture students
Ch11_lecture students

... acids together into a protein. • During protein synthesis, the two subunits come together, clasping an mRNA molecule between them. Copyright © 2009 Pearson Education Inc. ...
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... Chapter 10: Gene Expression / Regulation ...
Improving Your Experiment Through Replication
Improving Your Experiment Through Replication

... Standard statistical methods support sample size calculations to determine how many samples are needed to detect a specified difference between groups with a required level of power. In concept, this can be done for microarray experiments too. However, sample size calculations are based on a known l ...
Central Dogma PPT
Central Dogma PPT

... What Is the Code of Life? • It is the Genetic Code, which is the set of “messages” that are “translated” by ribosomes into proteins that define ...
Protein Synthesis Simulation Lab
Protein Synthesis Simulation Lab

... In a process called transcription, the DNA code is transcribed (copied) into mRNA, following rules similar to DNA replication we saw earlier (see below). mRNA moves out of the nucleus into the cytoplasm where it links up with ribosomes and begins churning out proteins. Recall that DNA consists of a ...
English Version
English Version

... l. DNA-DEPENDENT RNA SYNTHESIS (TRANSCRIPTION) (1) RNA Synthesis Requires RNA Polymerase and DNA Template and Activated Precursors (2) Transcription in Prokaryotes Takes Place in Three Phases (3) Transcription in Eukaryotes Is Much More Complex Than That in Prokaryotes 2. RNA POST-TRANSCRIPTIONAL PR ...
PowerPoint
PowerPoint

... Copyright © 2005 Pearson Education, Inc. Publishing as Benjamin Cummings ...
Chapter 11 Transcription and RNA Processing
Chapter 11 Transcription and RNA Processing

... • RNA synthesis, catalyzed by RNA polymerases, is similar to DNA synthesis in many respects. • RNA synthesis occurs within a localized region of strand separation (Transcription Bubble), and only one strand of DNA functions as a template for RNA synthesis. © John Wiley & Sons, Inc. ...
Systems Biology Conceptual Modeling by Means of Discrete
Systems Biology Conceptual Modeling by Means of Discrete

... and simulation of the production of proteins. The first conclusion is that dynamic processes of molecular and biological systems in general, the protein production process in particular can be modeled as a discrete dynamic system. Two areas can benefit from such a methodology that has been presented ...
Topic 2 Review
Topic 2 Review

... codon in the A site with the anticodon of an incoming molecule of tRNA with its amino acid. Peptide bond formation: component of large ribosomal subunit catalyzes the formation of a peptide bond between the amino acid extending from the P site and the newly arrived amino acid in the A site. The poly ...
Biology 430
Biology 430

... The second step in protein synthesis is called translation. During translation the information carried by the mRNA molecules is deciphered by the ribosome. The ribosome helps to translate this message into a sequence of amino acids. Sequences of amino acids are called proteins. The DNA is contained ...
DNA REPLICATION, PROTEIN SYNTHESIS AND MUTATIONS
DNA REPLICATION, PROTEIN SYNTHESIS AND MUTATIONS

... The second step in protein synthesis is called translation. During translation the information carried by the mRNA molecules is deciphered by the ribosome. The ribosome helps to translate this message into a sequence of amino acids. Sequences of amino acids are called proteins. The DNA is contained ...
MODULE 2
MODULE 2

... second carbon, while 2-Deoxy-D-Ribose in DNA, has none. ...
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RNA



Ribonucleic acid (RNA) is a polymeric molecule implicated in various biological roles in coding, decoding, regulation, and expression of genes. RNA and DNA are nucleic acids, and, along with proteins and carbohydrates, constitute the three major macromolecules essential for all known forms of life. Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA it is more often found in nature as a single-strand folded onto itself, rather than a paired double-strand. Cellular organisms use messenger RNA (mRNA) to convey genetic information (using the letters G, U, A, and C to denote the nitrogenous bases guanine, uracil, adenine, and cytosine) that directs synthesis of specific proteins. Many viruses encode their genetic information using an RNA genome.Some RNA molecules play an active role within cells by catalyzing biological reactions, controlling gene expression, or sensing and communicating responses to cellular signals. One of these active processes is protein synthesis, a universal function whereby mRNA molecules direct the assembly of proteins on ribosomes. This process uses transfer RNA (tRNA) molecules to deliver amino acids to the ribosome, where ribosomal RNA (rRNA) links amino acids together to form proteins.
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