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Chapter 2 The Chemistry of Life
Chapter 2 The Chemistry of Life

What is Life? Project PART 6: The molecules of life
What is Life? Project PART 6: The molecules of life

... determine your hair color, eye color, skin color, gender and many other things. When something is cloned, scientists must start with a good copy of that animal’s DNA. The building blocks of nucleic acids are nucleotides. Nucleotides stack in a special way. They stack in pairs, like a big zipper. The ...
HONORS BIOLOGY FINAL EXAM STUDY GUIDE 2010
HONORS BIOLOGY FINAL EXAM STUDY GUIDE 2010

... a. May contain the bases adenine, thymine cytosine or guanine b. May contain the base uracil c. Responsible for adding bases to DNA strand during replication d. Process by which DNA strand is turned into mRNA message e. Carries amino acid to ribosomes for assembly 11. Using your knowledge of protein ...
Synthese der Oligonukleotide
Synthese der Oligonukleotide

... The design of biomolecules with defined structures and functions is an unreached goal. Today, we understand protein folding only incompletely. Also how catalysis is achieved is not jet fully understood. Synthetic enzyme mimics or designed proteins mimics are still inefficient catalysts in comparison ...
Flip Folder 6 KEY - Madison County Schools
Flip Folder 6 KEY - Madison County Schools

... Enzyme that clips only a couple base pairs in front of helicase to prevent the DNA double helix from “kinking” or “twisting” too much in front of the replication fork. c. Single-strand binding proteins The 2 strands of a double helix bind together by hydrogen bonds between the bases. These bonds are ...
CHAPTER 16 – THE MOLECULAR BASIS OF INHERITANCE
CHAPTER 16 – THE MOLECULAR BASIS OF INHERITANCE

... looser structure and transcription factors have easier access to the genes of the acetylated region. Acetylation promotes transcription. b. DNA methylation – methyl groups can be attached to the DNA molecule at certain bases (usually cytosine). Highly methylated DNA is usually inactive. Methylation ...
Electronic supplementary material
Electronic supplementary material

... Helices I, II and IV are marked. The DNA is shown as a sticks representation. The proteins’ solvent accessible surfaces are colored according to their electrostatic surface potentials as in item A. In the 434 repressor the surface of the loop connecting helices III and IV, which contributes with imp ...
Comparison of DNA damage by subionized and ionized energy electron collisions and novel component separable nonthermal atmospheric plasma
Comparison of DNA damage by subionized and ionized energy electron collisions and novel component separable nonthermal atmospheric plasma

... MS/MS and XPS to compare the yield of DNA damage and find out new types of DNA damage. 3. Results and discussion We confirm that LEEs can indirectly generate DNA damage through DEA resonant process and HEE can directly generate DNA damage through one electron ionization. Fig. 1 shows HPLC chromatogr ...
Biology 321 Spring 2013 Assignment Set 7 Reading Assignments in
Biology 321 Spring 2013 Assignment Set 7 Reading Assignments in

... since 1973, it is estimated that about 1,000 chimpanzees are removed annually from Africa and smuggled into Europe, the U.S. and Japan. This illegal trade is often disguised by private (such as zoo or circus) owners by simulating births in captivity. Until recently, genetic identity tests to uncover ...
Regulation of Eukaryotic Genes
Regulation of Eukaryotic Genes

... 3B.1a.2: A regulatory gene is a sequence of DNA encoding a regulatory protein or RNA. 3B.1c: In eukaryotes, gene expression is complex and control involves regulatory genes, regulatory elements and transcription factors act in concert. 3B.1c.1: Transcription factors bind to specific DNA sequences an ...
Forensic Science
Forensic Science

... •The smaller DNA fragments will move at a faster rate on the gel plate than the larger ones. •The fragments are then transferred to a nylon membrane in a process called Southern blotting. •To visualize the RFLPs, the nylon sheet is treated with radioactive probes containing a base sequence complemen ...
UNIT 9 NOTES Genetics
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... Nitrogenous bases: purines and pyrimidines 1. Nitrogenous bases ( 4) a. Adenine purines ...
Molecular Biology
Molecular Biology

... But there are several important differences! They differ in composition: The sugar in RNA is ribose, not the deoxyribose in DNA. The base uracil is present in RNA instead of thymine. They also differ in size and structure: RNA molecules are smaller (shorter) than DNA molecules, RNA is single-strand ...
AS 09 Genetic Engineering.pps237.5 KB
AS 09 Genetic Engineering.pps237.5 KB

... converted to single stranded DNA by treatment with ....................................... . This is then treated with ................................................... to produce double stranded (double helix) DNA. Plasmid DNA is also extracted from suitable bacteria for use as a ................ ...
cell membrane
cell membrane

... The nucleic acids are the building blocks of living organisms. You may have heard of DNA described the same way. Guess what? DNA is just one type of nucleic acid. Some other types are RNA, mRNA, and tRNA. All of these "NA's" work together to help cells replicate and build proteins. NA? Hold on. Migh ...
Fill in blank notes - Cathkin High School
Fill in blank notes - Cathkin High School

... removed along with the intron(s) next to them. [All the ___________ are always removed from the primary RNA transcript]. This is called _______________ RNA splicing. This means that the same primary mRNA transcript has the potential to produce several different mRNA molecules. Each mRNA molecule wil ...
Chromosomes in prokaryotes
Chromosomes in prokaryotes

... Extra chromosomal DNA Mitochondrial DNA In animals the mitochondrial genome is typically a single circular chromosome and mitochondrial DNA lacks introns; however, introns have been observed in mitochondrial DNA of yeast and protists. There is a very high proportion of coding DNA and an absence of r ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI

... Discuss any two hypotheses to explain the mechanism of formation of enzyme-substrate enzyme complex. ...
Organic Compounds
Organic Compounds

... protein shape is very important. Levels of protein shape: - primary – sequence of amino acids in a polypeptide - secondary – helix or pleated sheets (fan folded paper) Caused by hydrogen bonding between the amino acids - tertiary – further folding of the protein. Caused by chemical interactions betw ...
MBP 1022, LECTURE 1 – Oct 27, 2000
MBP 1022, LECTURE 1 – Oct 27, 2000

... Green: tubulin cytoskeleton ...
Mutation
Mutation

... Experimental test of Lamarck’s “inheritance of acquired traits” Salvador Luria and Max Delbrück (1943) The two possibilities tested by the Luria–Delbrück experiment… (A) If mutations are induced by the media, roughly the same number of mutants are expected to appear on each plate (LAMARCK) (B) If m ...
2: CHEMICAL COMPOSITION OF THE BODY
2: CHEMICAL COMPOSITION OF THE BODY

... consist of a phosphate group, a sugar (deoxyribose in DNA, ribose in RNA), and one of five possible carbon-nitrogen rings called purine or pyrimidine bases. Nucleotides are linked together by covalent bonds between the sugar and phosphate groups of adjacent subunits. The three-dimensional structure ...
Preview Sample 2
Preview Sample 2

... consist of a phosphate group, a sugar (deoxyribose in DNA, ribose in RNA), and one of five possible carbon-nitrogen rings called purine or pyrimidine bases. Nucleotides are linked together by covalent bonds between the sugar and phosphate groups of adjacent subunits. The three-dimensional structure ...
CST Review
CST Review

... 45. The gene for color vision (C) is dominant to the gene for color blindness (c) and is located on the X chromosome. If a color blind man and a woman with homozygous normal color vision have children, what are the chances that they will have a colorblind child? 46. Why do some lethal (deadly) allel ...
Chromosomal mutations
Chromosomal mutations

... Deletion, Duplication, Inversion, Translocation ...
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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.
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