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CH. 8
CH. 8

... • Codon is a 3 nucleotide sequence that codes for a particular ___________________, referred to as the __________________. • First 2 nucleotides are usually the ____________ important in coding for an amino acid • ________________________ – signals the start of translation and the amino acid is ____ ...
Five types of bases.
Five types of bases.

... - RNA contains not equal amount of A/U and G/C. - RNA contain modified bases which prevent base ...
ATP. The 32P-containing terminal nucleotide
ATP. The 32P-containing terminal nucleotide

... addition due to the absence of a 3'-hydroxyl linkage group. Likewise, DNA and DNA oligomers, after addition of a dideoxyribonucleotide, are resistant to-the pyrophosphorolysis and 3'exonuclease functions of DNA polymerase (6,15). In contrast to the addition of ribonucleotides to DNA oligomers with t ...
DNA: Making a Paper Model
DNA: Making a Paper Model

... together to make a ladder shape. Background Information: The simplest form used to represent DNA – deoxyribonucleic acid - is a ladder shape. The ladder model can help us visualize how the components of the DNA molecule: the four different nitrogen bases and the sugar-phosphate sides pieces or backb ...
Transcription translation flipbook
Transcription translation flipbook

... Description: Use a drawing program (such as powerpoint) to create a segment of DNA and show the processes of transcription and translation by “stepping” through the movement of the molecules through the cell to create a protein. Each step is drawn and described with labeling of all molecules and pro ...
Name _____Per________ Due Date__________ PROTEIN
Name _____Per________ Due Date__________ PROTEIN

... 1. Figure 2 is a diagram illustrating protein synthesis. Select four different colored pencils, and use them to color the coding circles and the corresponding structures in the diagram. 2. Then, using the letters of the genetic code, label the nitrogen bases on the unlabeled strand of the DNA double ...
DNA REVIEW _KEY_
DNA REVIEW _KEY_

... Answer these on your own or use DNA and Transcription notes for help. 27. Which of the following are single-stranded (DNA, mRNA or tRNA) – 2 answers? mRNA, tRNA 28. Which of the following are double-stranded (DNA, mRNA or tRNA) – 1 answer? DNA 29. Which of the following are found ONLY in the nucleus ...
DNA & Protein Synthesis
DNA & Protein Synthesis

... Nucleotide sequence on one end which is known as the "Anitcodon" •This Anticodon sequence is complimentary to the Codon sequence found on the strand of mRNA •Each tRNA can bind specifically with a particular amino acid. ...
A Search for Genes Encoding Histidine
A Search for Genes Encoding Histidine

... branched-chain amino acids, and threonine are also known [4]. The latter publication also proposed a number of radically new variants of this regulation. We have studied a ...
A Novel Third Isoform of Zebrafish Cytochrome Oxidase IV
A Novel Third Isoform of Zebrafish Cytochrome Oxidase IV

... • Cytochrome Oxidase (COX) is the last enzyme in the mitochondrial respiratory chain. • COX IV is thought to have a regulatory function in energy production. This subunit has a number 2 different isoforms. • Mammals have two isoforms for COX IV – a widely expressed form and a lung specific form. ...
The structure of a d5SICS-dNaM pairing - Digital USD
The structure of a d5SICS-dNaM pairing - Digital USD

... DNA is the genetic blueprint responsible for the traits of living organisms. The "genetic alphabet" consists of four molecules called nucleobases, represented by the letters A, T, G, and C strung together in a "strand.” A DNA duplex consists of two "strands" held together such that adenine (A) is ac ...
Document
Document

... • Nucleotides only be added to 3’ end. • DNA strand can only elongate from 5’ end to 3’ end. • Replication fork - problem system because strands run in ...
DNA Structure and Replication Integrated Science 4
DNA Structure and Replication Integrated Science 4

... nitrogenous bases oriented toward the center of the molecule. 7. Following Rosalind Franklin’s work, James Watson and Francis Crick established the structure of DNA. Describe their work, including the relationship between nitrogenous bases within the DNA molecule. Watson and Crick used models to con ...
RNA and Protein Synthesis
RNA and Protein Synthesis

... So, transcription is “Writing” the mRNA code from a strand of DNA Occurs in the nucleus so the message can be sent from DNA to the ribosomes DNA never leaves nucleus! ...
1. Because DNA is a highly charged polyanion, its stability to heat
1. Because DNA is a highly charged polyanion, its stability to heat

... A.can participate in hydrophobic interactions due to its methyl group B. is replaced by uracil in RNA C. normally forms two hydrogen bonds with adenosine D.all of the above ...
Understanding DNA Structure
Understanding DNA Structure

... http://images.google.com/imgres?imgurl=http://www.achievement.org/achievers/wat0/large/wat0-001.jpg&imgrefurl=http://www.achievement.org/autodoc/photocredit/achievers/wat0001&h=311&w=400&sz=37&tbnid=DC39azwoaZql9M:&tbnh=96&tbnw=124&prev=/images%3Fq%3Djames%2Bwatson%26um%3D1&start=1&sa=X&oi=images&ct ...
DNA - hedrickbiology
DNA - hedrickbiology

... fork: the sites on DNA where separation and replication occur. ► DNA Helicase: the enzyme that “unzips” a molecule of DNA. Hydrogen bonds between the base pairs are broken and the two strands unwind. ► DNA Polymerase: enzyme that brings more nucleotides and also proof-reads each new DNA strand, help ...
Ch16p1
Ch16p1

... the genetic material of bacteriophage (T2) in 1952 *these scientists did not know which viral component (DNA or protein) was responsible for reprogramming the host bacterial cell (see experiment Fig. 16.2) ...
1 RNA - CK-12 Foundation
1 RNA - CK-12 Foundation

... site of protein synthesis, and tRNA brings an amino acid to the ribosome so it can be added to a growing chain during protein synthesis. There are numerous tRNAs, as each tRNA is specific for an amino acid. The amino acid actually attaches to the tRNA during this process. More about RNAs will be dis ...
DNA
DNA

... tRNA brings amino acids to ribosome (rRNA) codons + anticodons align = bring amino acids into place several amino acids = polypeptide chain polypeptide chains will detach and wrap with other chains to form a protein ...
The Genetic Code for Certain Amino Acids
The Genetic Code for Certain Amino Acids

... rungs are composed of for 4 nucleotide bases; adenine, guanine (called purines), thymine and cytosine (called pyrimidines). Each rung is composed of only 2 bases, one pyrimidine and one purine, and each base bonds exclusively with only one other base; adenine with thymine, and cytosine with quanine. ...
Chapter 14: DNA Structure and Function
Chapter 14: DNA Structure and Function

... origins of replication, where the two DNA strands are separated, opening up a replication “bubble” A eukaryotic chromosome may have hundreds or even thousands of origins of replication Replication proceeds in both directions from each origin, until the entire molecule is copied ...
Structure of DNA - McCarter Biology
Structure of DNA - McCarter Biology

... 2. Use the left half (original hemoglobin sequence given in table above) of your model and add new DNA nucleotides to form a new right side. 3. Build a second DNA model by adding new nucleotides to the right half of the original strand. 4. How do the two DNA molecules formed in replication compare? ...
Chemistry department/ Third class Bioche
Chemistry department/ Third class Bioche

... found in nature as a single-strand folded onto itself, rather than a paired doublestrand. There are three types of RNA that includes messenger RNA (mRNA), ribosomal RNAs (rRNAs) and transfer RNA or tRNA. The chemical structure of RNA is very similar to that of DNA, but differs in three main ways: 1. ...
02HYD16_Layout 1
02HYD16_Layout 1

... A) Its charged phosphate groups B) The formation of hydrogen bonds between bases from opposite strands C) The opposite direction of the two strands D) The pairing of bases on one strand with bases on the other strand 25. What is antisense technology? A) RNA polymerase producing DNA B) A cell display ...
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Helicase



Helicases are a class of enzymes vital to all living organisms. Their main function is to unpackage an organism's genes. They are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separating two annealed nucleic acid strands (i.e., DNA, RNA, or RNA-DNA hybrid) using energy derived from ATP hydrolysis. There are many helicases resulting from the great variety of processes in which strand separation must be catalyzed. Approximately 1% of eukaryotic genes code for helicases. The human genome codes for 95 non-redundant helicases: 64 RNA helicases and 31 DNA helicases. Many cellular processes, such as DNA replication, transcription, translation, recombination, DNA repair, and ribosome biogenesis involve the separation of nucleic acid strands that necessitates the use of helicases.
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