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LN #22
LN #22

... Adenine (A) Guanine (G) Cytosine (C) ...
dna model - Pitt
dna model - Pitt

... replication, the DNA “unzips” its two halves, separating at the sight where the bases were bound together. New complimentary bases attach to the now free bases and form two new strands of DNA. Each new strand is made of nucleotides from the original strand and new nucleotides that are attached to th ...
Document
Document

... complementary strand using base-pairing rules. ...
Mechanisms and Analysis of DNA Mutations
Mechanisms and Analysis of DNA Mutations

... Double stranded DNA Redundancy of pathways ...
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... making every protein in your body. Why are proteins important? Because they are what your muscles and tissue are made of; they synthesize the pigments that color your skin, hair, and eyes; they digest your food; they make (and sometimes are) the hormones that regulate your growth; they defend you fr ...
DNA REPLICATION
DNA REPLICATION

... • The first generation of bacteria was grown in the heavy nitrogen, and then switched to the lighter nitrogen • The idea behind their experiment was that as each generation of bacteria grew, the density of the DNA would change as they incorporated more and more of the lighter DNA • Therefore, if the ...
DNA power point
DNA power point

... Deoxyribonucleic Acid (DNA) is the blueprint of life. It contains all the instructions for life’s processes. It’s shape is a twisted ladder, where covalent bonds hold the sides of the ladder together, and hydrogen bonds hold the steps of the ladder together. DNA is composed of individual units know ...
chapter 24 lecture (ppt file)
chapter 24 lecture (ppt file)

... form. Cleavage, association with other proteins, and bonding to carbohydrate or lipid groups may occur before a protein is fully functional. ...
Module 14 Nucleic Acids Lecture 36 Nucleic Acids I
Module 14 Nucleic Acids Lecture 36 Nucleic Acids I

... NPTEL – Biotechnology – Cell Biology ...
Molecular Genetics
Molecular Genetics

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DNA & DNA Replication
DNA & DNA Replication

... different from the other end 2 strands are anti-parallel, run in opposite directions ...
Modeling Activity: How Genes Make Proteins…
Modeling Activity: How Genes Make Proteins…

... 1. When does DNA replication take place during the cell cycle? 2. Using the base cards provided, randomly place 8 nitrogen bases in a row in front of you. Practice simulation of DNA replication. Once you have a complete two strand DNA molecule, write the parent and complementary DNA strand in your l ...
Nucleic acids
Nucleic acids

... used to detect Reverse transcriptase viruses such as HIV. In the assay, Branched DNA is mixed with a sample to be tested. If the branched DNA binds to viral RNA, then the luminescent compound will react, and the result can be measured via luminometer ...
RNA
RNA

... 3. Free floating RNA nucleotides in the nucleus pair up with these unzipped DNA nucleotides A. Cytosine(C) pairs with Guanine(G) B. Uracil(U) pairs with Adenine(A) ...
DNA Translation
DNA Translation

... DNA Translation Deoxyribonucleic acid (DNA) is composed of a sequence of nucleotide bases paired together to form a double-stranded helix structure. Through a series of complex biochemical processes the nucleotide sequences in an organism's DNA are translated into the proteins it requires for life. ...
Protein Synthesis Vocabulary Transcription Translation
Protein Synthesis Vocabulary Transcription Translation

... 5. Which statement describes a cell process that is common to both eukaryotic and prokaryotic cells? A. Both cell types carry out transcription in the nucleus. B. Both cell types use ribosomes to carry out translation. C. Both cell types assemble amino acids to carry out transcription. D. Both cell ...
The Molecular Nature of Genes
The Molecular Nature of Genes

... infection was due to A. the presence of a protective coat. B. destruction by the host's white blood cells. C. the presence of a gene for a polysaccharide coat. D. the high body temperature of the host. E. none of the choices are correct. ...
PowerPoint - American Society for Investigative Pathology
PowerPoint - American Society for Investigative Pathology

... Double-stranded (ds) DNA takes the form of a right handed helix with approximately 10 base pairs per turn of the helix. ...
Cell Controls
Cell Controls

... DNA strand: ATCCGGAATCCGTACGCTCTATAA RNA strand: ____________________________ What is this process called? Where does this process occur? Where will mRNA go after being made? What is the 3 base code on mRNA called? What does it code for? ...
DNA and protein synthesis
DNA and protein synthesis

... genome comprises some three gigabases (three million base pairs), from genes within DNA. Most of the DNA is kept within the cell nucleus, but some DNA can be found in the mitochondrion (mitochondrial DNA). The DNA sequence is a triplet code, whereby a short sequence of three bases codes for one amin ...
Mutation Lab - My Teacher Site
Mutation Lab - My Teacher Site

... 15. Compare the mutated DNA strand in #14 with that of the original, non-mutated DNA strand in #1. What type of mutation is this, according to p. 219 in your book? (Hint: pay special attention to the underlined nucleotide). ...
13.1 Notes - Trimble County Schools
13.1 Notes - Trimble County Schools

... the DNA and finally to multiply a million times ...
Powerpoint - School of Engineering and Computer Science
Powerpoint - School of Engineering and Computer Science

... blueprint for cellspecific synthesis of proteins ...
What we already know:
What we already know:

... •Use Franklin’s images to describe the structure of DNA •(1962) Watson, Crick, and Wilkins win the Nobel Prize, Franklin has already died from cancer (1958) so she does not get recognition ...
CP Biology Day 1 - Calhoun City Schools
CP Biology Day 1 - Calhoun City Schools

... 2. From the templates provided by your teacher, cut out the pattern for the chemical bases sugars, and phosphates listed above (note – there are more than these on the templates, only cut out the amount listed in the materials section). 3. Arrange the cut outs on your table to form the pattern descr ...
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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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