Regulation of Gene Expression
... Most inducible operons are like the lac operon. Therefore, what type of pathway do inducible operons generally control: Anabolic or Catabolic? May be inducible (generally control catabolic pathways) repressible (usually control anabolic pathways) ...
... Most inducible operons are like the lac operon. Therefore, what type of pathway do inducible operons generally control: Anabolic or Catabolic? May be inducible (generally control catabolic pathways) repressible (usually control anabolic pathways) ...
Transcription | Principles of Biology from Nature Education
... "downstream." Unlike DNA polymerase, RNA polymerase does not need a primer to start transcription. The stretch of DNA that is transcribed into RNA is known as the transcription unit. Transcription has three distinct phases: initiation, elongation and termination. During initiation, with the help of ...
... "downstream." Unlike DNA polymerase, RNA polymerase does not need a primer to start transcription. The stretch of DNA that is transcribed into RNA is known as the transcription unit. Transcription has three distinct phases: initiation, elongation and termination. During initiation, with the help of ...
No Slide Title
... These accumulate in the nucleolus, and may play a role in ribosome assembly. Thus the introns cut out of premRNA, may play a role in producing, or regulating production of machinery to translate the mRNA’s code 3' Untranslated Regions - Play an important role in regulating some genes (Wickens and Ta ...
... These accumulate in the nucleolus, and may play a role in ribosome assembly. Thus the introns cut out of premRNA, may play a role in producing, or regulating production of machinery to translate the mRNA’s code 3' Untranslated Regions - Play an important role in regulating some genes (Wickens and Ta ...
DNA Translocation Through Nanopores
... force upon decreasing the diameter of the pore. This can be attributed to a reduction of the electroosmotic flow in smaller pores, which always opposes the electrostatic force acting on the DNA molecule. Coating the nanopore walls with an electrically neutral POPC lipid bilayer significantly reduce ...
... force upon decreasing the diameter of the pore. This can be attributed to a reduction of the electroosmotic flow in smaller pores, which always opposes the electrostatic force acting on the DNA molecule. Coating the nanopore walls with an electrically neutral POPC lipid bilayer significantly reduce ...
Our laboratory studies the regulation of gene expression in
... We have identified histone acetyl transferases and deacetylases that affect gene expression in a position-dependent, promoter-independent (silencing) manner. More recently, we have identified histone methyltransferases that also affect silencing. We are especially interested to know how these and ot ...
... We have identified histone acetyl transferases and deacetylases that affect gene expression in a position-dependent, promoter-independent (silencing) manner. More recently, we have identified histone methyltransferases that also affect silencing. We are especially interested to know how these and ot ...
Enzyme Mechanisms
... Amino groups in C, A, G make H-bonds So do ring nitrogens at 3 in pyrimidines and 1 in purines … and oxygens at 4 in U,T, 2 in C, 6 in G ...
... Amino groups in C, A, G make H-bonds So do ring nitrogens at 3 in pyrimidines and 1 in purines … and oxygens at 4 in U,T, 2 in C, 6 in G ...
moluceular lab 1
... 1-H-bond : ( Binding between parts of near region and far region from poly-peptide ) 2-Ionic bond : (Binding between free of Amine group at one side of the poly-peptide with free of Carboxyl group on the other side of the poly-peptide 3-di-sulfide bond (-S-S-) :(Binding between two atom of sulfide i ...
... 1-H-bond : ( Binding between parts of near region and far region from poly-peptide ) 2-Ionic bond : (Binding between free of Amine group at one side of the poly-peptide with free of Carboxyl group on the other side of the poly-peptide 3-di-sulfide bond (-S-S-) :(Binding between two atom of sulfide i ...
Chapter 17 Protein Synthesis
... • The discovery of ribozymes rendered obsolete the belief that all biological catalysts were proteins ...
... • The discovery of ribozymes rendered obsolete the belief that all biological catalysts were proteins ...
Unit 5. Day 7. Macromolecule Build CW
... MATERIALS MANAGER: This scientist is responsible for gathering/returning all of the materials to/from the front of the room. Also responsible for throwing away any and all trash. SCISSORS MANAGER: This scientist will be responsible for the cutting of monomer pages. Also responsible for taping/g ...
... MATERIALS MANAGER: This scientist is responsible for gathering/returning all of the materials to/from the front of the room. Also responsible for throwing away any and all trash. SCISSORS MANAGER: This scientist will be responsible for the cutting of monomer pages. Also responsible for taping/g ...
AP Biology
... § The march to understanding that DNA is the genetic material T.H. Morgan (1908) u Frederick Griffith (1928) u Avery, McCarty & MacLeod (1944) u Erwin Chargaff (1947) u Hershey & Chase (1952) u Watson & Crick (1953) u ...
... § The march to understanding that DNA is the genetic material T.H. Morgan (1908) u Frederick Griffith (1928) u Avery, McCarty & MacLeod (1944) u Erwin Chargaff (1947) u Hershey & Chase (1952) u Watson & Crick (1953) u ...
Reagents for Protein Sequence DeterminaXon
... hydrolysis yields all the amino acids plus the N-terminal one modified by the dansyl group. This modified amino acid is highly fluorescent and allows detection from very small amounts of protein ...
... hydrolysis yields all the amino acids plus the N-terminal one modified by the dansyl group. This modified amino acid is highly fluorescent and allows detection from very small amounts of protein ...
Activity: Invasion of the Snorks
... 1. Create the data charts in your lab book. Make sure to leave enough room to have all of the necessary information present. 2. Using the mRNA from the Snork, find the missing strand of DNA belonging to the Snork. From what we know about the Snorks, the base pairing rules are the same as us. 3. Code ...
... 1. Create the data charts in your lab book. Make sure to leave enough room to have all of the necessary information present. 2. Using the mRNA from the Snork, find the missing strand of DNA belonging to the Snork. From what we know about the Snorks, the base pairing rules are the same as us. 3. Code ...
DNA molecular identification
... 5.8S In angiosperms, rDNA are organized in long tandem repeats, with each containing a single transcribed region spanning the 18S, 5.8S, and 26S rDNA, ITS1 and ITS2, and IGS. Although the 18S, 5.8S, and 26S rDNA are highly conserved, the ITS regions are variable in different genus, species, even pop ...
... 5.8S In angiosperms, rDNA are organized in long tandem repeats, with each containing a single transcribed region spanning the 18S, 5.8S, and 26S rDNA, ITS1 and ITS2, and IGS. Although the 18S, 5.8S, and 26S rDNA are highly conserved, the ITS regions are variable in different genus, species, even pop ...
Agrobacterium Plasmid Prep
... rolling the tube. The solution should become clear and translucent due to bacterial lyses. Let stand (max. 1/2 hour) at RT if solution fails to clear. (Note: Solution #2 will still work if several weeks old; however, the fresher it is, the better your prep will be. It is not recommended to use if ol ...
... rolling the tube. The solution should become clear and translucent due to bacterial lyses. Let stand (max. 1/2 hour) at RT if solution fails to clear. (Note: Solution #2 will still work if several weeks old; however, the fresher it is, the better your prep will be. It is not recommended to use if ol ...
The Real Role of the Forensic Scientist is to Uncover
... analysis in forensics today. First is the increased dependence on DNA analysis and the associated funding in forensic labs. Some labs have lost the ability to analyze trace evidence in favor of DNA analysis. DNA evidence relies on comparison of collected data against a known sample. However, there a ...
... analysis in forensics today. First is the increased dependence on DNA analysis and the associated funding in forensic labs. Some labs have lost the ability to analyze trace evidence in favor of DNA analysis. DNA evidence relies on comparison of collected data against a known sample. However, there a ...
Ch. 5 - Macromolecules
... • The structure of phospholipids – Results in a bilayer arrangement found in cell membranes ...
... • The structure of phospholipids – Results in a bilayer arrangement found in cell membranes ...
No Slide Title
... How to bioengineer a novel system? Obtain a sequence by PCR, then clone it into a suitable plasmid •We’re adding DNA, but want E. coli to make a protein! ...
... How to bioengineer a novel system? Obtain a sequence by PCR, then clone it into a suitable plasmid •We’re adding DNA, but want E. coli to make a protein! ...
E1. A codon contains three nucleotides. Since G and C are present
... E3. The threonine has been changed to serine. Based on their structures, a demethylation of threonine has occurred. In other words, the methyl group has been replaced with hydrogen. E4. The initiation phase of translation is very different between bacteria and eukaryotes, so they would not be transl ...
... E3. The threonine has been changed to serine. Based on their structures, a demethylation of threonine has occurred. In other words, the methyl group has been replaced with hydrogen. E4. The initiation phase of translation is very different between bacteria and eukaryotes, so they would not be transl ...
Paul Mead Doty
... whose thesis on the structure of collagen in solution became a landmark. They married, and Helga became the mainstay of the laboratory for more than 40 years until her death in 2001. When Doty was absent from the lab during his trips abroad to promote arms control, a quiet word to Helga brought urge ...
... whose thesis on the structure of collagen in solution became a landmark. They married, and Helga became the mainstay of the laboratory for more than 40 years until her death in 2001. When Doty was absent from the lab during his trips abroad to promote arms control, a quiet word to Helga brought urge ...
Advances in the molecular ecology of foxes
... making it difficult to accurately evaluate the success of any management actions. One response to the problem of how to directly measure the density of such an elusive species is to use a noninvasive survey technique such as an activity index (eg counts of tracks and scats). A major limitation with ...
... making it difficult to accurately evaluate the success of any management actions. One response to the problem of how to directly measure the density of such an elusive species is to use a noninvasive survey technique such as an activity index (eg counts of tracks and scats). A major limitation with ...
PCR - Fort Lewis College
... uniformly throughout of the primer. More than three G or C nucleotides at the 3' -end of the primer should be avoided, as nonspecific priming may occur. The primer should not be self-complementary or complementary to any other primer in the reaction mixture, in order to avoid primer-dimer and hairpi ...
... uniformly throughout of the primer. More than three G or C nucleotides at the 3' -end of the primer should be avoided, as nonspecific priming may occur. The primer should not be self-complementary or complementary to any other primer in the reaction mixture, in order to avoid primer-dimer and hairpi ...
Nucleic acid analogue
Nucleic acid analogues are compounds which are analogous (structurally similar) to naturally occurring RNA and DNA, used in medicine and in molecular biology research.Nucleic acids are chains of nucleotides, which are composed of three parts: a phosphate backbone, a pucker-shaped pentose sugar, either ribose or deoxyribose, and one of four nucleobases.An analogue may have any of these altered. Typically the analogue nucleobases confer, among other things, different base pairing and base stacking properties. Examples include universal bases, which can pair with all four canonical bases, and phosphate-sugar backbone analogues such as PNA, which affect the properties of the chain (PNA can even form a triple helix).Nucleic acid analogues are also called Xeno Nucleic Acid and represent one of the main pillars of xenobiology, the design of new-to-nature forms of life based on alternative biochemistries.Artificial nucleic acids include peptide nucleic acid (PNA), Morpholino and locked nucleic acid (LNA), as well as glycol nucleic acid (GNA) and threose nucleic acid (TNA). Each of these is distinguished from naturally occurring DNA or RNA by changes to the backbone of the molecule.In May 2014, researchers announced that they had successfully introduced two new artificial nucleotides into bacterial DNA, and by including individual artificial nucleotides in the culture media, were able to passage the bacteria 24 times; they did not create mRNA or proteins able to use the artificial nucleotides. The artificial nucleotides featured 2 fused aromatic rings.