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DNA
DNA

... "_______ _____ ________" into the DNA of another organism. The organism who received this sequence of DNA will __________this code! By using genetic engineering, we have been able to _____________ important chemicals such as insulin, interferon (a cancer fighting protein), and human growth hormone ( ...
Chapter 16
Chapter 16

... IX. Ends of the DNA molecules • Telomeres = . – Allows shortening of the chromosome ends after each replication event. – May regulate cell division and aging of tissues. -Telomerase = enzyme found in germ line cells. Elongates the telomeres prior to gamete production. ...
Nucleic Acids - Cloudfront.net
Nucleic Acids - Cloudfront.net

... 6) If the DNA nitrogen bases were TACCGGAT, how would the attached DNA strand read? 7) How are DNA and RNA different? Same? 8) How does dehydration synthesis and hydrolysis differ? ...
DNA-Based Nanomechanical Devices
DNA-Based Nanomechanical Devices

... on paranemic crossover (PX) structures.4 The key piece of this work has been produced as a part of this NSF-NIRT project. Seeman and coworkers have developed a robust sequencedirected nanomechanical device that executes 180˚ rotations. This device is based on an interchange between two different DNA ...
Candy DNA Objective: To teach students about DNA by building
Candy DNA Objective: To teach students about DNA by building

... lay out rules for the development and functioning of all living cells in organisms. DNA have two strands of nucleic acids held together by base pairs. This structure is called a double helix. The instructions are written in an alphabet using only four letters (GACT). The alphabet letters giving the ...
The Genetic Code and Transcription
The Genetic Code and Transcription

... An RNA cap and tail are added ...
dna+aki - Ninjaquest
dna+aki - Ninjaquest

... is an essential part of DNA, RNA, and ATP. DNA, as you might know, is the genetic code used for cellular life on earth. It is through the precise inheritance of on organism's DNA from its parent that the traits of an organism are passed on. Here is the partial structure of DNA with an Adenine group ...
DNA PPT
DNA PPT

... to be produced  Since you can use one ...
Transcription and Translation
Transcription and Translation

... • AUG is used as the start codon. All proteins are initially translated with methionine in the first position, although it is often removed after translation. There are also internal methionines in most proteins, coded by the same AUG codon. ...
Modeling DNA Replication and Protein Synthesis
Modeling DNA Replication and Protein Synthesis

... 7. Unzip the newly formed mRNA molecule by breaking the weak hydrogen bonds connecting it to the DNA template strand. (Note: The DNA can zip back together or help form a new mRNA). 8. Take the “free” mRNA molecule from the nucleus and place on the ribosome in the cytoplasm. This will be the site of ...
Molecule of the Month extension
Molecule of the Month extension

... RNA is a versatile molecule. In its most familiar role, RNA acts as an intermediary, carrying genetic information from the DNA to the machinery of protein synthesis. RNA also plays more active roles, performing many of the catalytic and recognition functions normally reserved for proteins. In fact, ...
RNA
RNA

...  A Venn diagram is made up of overlapping circles. It is a useful ...
DNA PPT
DNA PPT

... to be produced  Since you can use one ...
DNA Replication
DNA Replication

... 1. Double stranded DNA that has been labeled with radioactive 14C is used as the  template for replication. Replication is carried out in a medium containing only  unlabeled nucleotides. After two rounds of replication, what percent of double  stranded DNA molecules are radioactive?  A) 25%  B) 50%  ...
Translation
Translation

... Gene Regulation in Prokaryotes The lac operon enables the production of lactose-processing enzymes in E. coli, but only when needed. • In the presence of lactose, the • In the absence of lactose, the repressor is inhibited from repressor protein binds to the binding with the operator; this operator ...
DNA Replication
DNA Replication

... 1. Double stranded DNA that has been labeled with radioactive 14C is used as the template for replication. Replication is carried out in a medium containing only unlabeled nucleotides. After two rounds of replication, what percent of double stranded DNA molecules are radioactive? A) 25% B) 50% C) 7 ...
Polymers
Polymers

... History of DNA  Scientists were aware that DNA had a sugar phosphate background and had bases A, T, G and C but were not sure about the actual shape of DNA.  Wilkins and Franklin used X-ray crystallography to create images of DNA’s structure.  Watson discovered that the base pairs A to T were ex ...
DNA ppt notes
DNA ppt notes

... At the replication fork, DNA Polymerase III continuously adds complimentary nucleotides to exposed bases on 3’ end of new strand, this is called the leading strand DNA polymerase III must work away from the replication fork on the other strand, the lagging strand, to follow the 5’-3’ direction creat ...
DNA - anisam2
DNA - anisam2

... RNA (not protein) is genetic material of some viruses, but no known prokaryotes or eukaryotes use RNA as their genetic material. ...
Polymerase Chain Reaction (PCR)
Polymerase Chain Reaction (PCR)

... creating a complement to the target strand. The newly made strands are then dehybridized, and the number of strands doubles to four. Primer annealing and extension takes place again, resulting in 8 strands, then 16. After 30 cycles there are over one billion copies of the desired region. ...
bacterial genetics
bacterial genetics

... another by a bacteriophage. Packaging error within the infected bacteria during the assembly of progeny phages – presence of a segment of host DNA along with the phage nucleic acid in the core of ...
Name
Name

... 10. Hershey and Chase radioactively tagged the viral DNA with _______________ and the protein capsid with ______________. 11. Which radioactive substance was injected into and took over the host cell's DNA? 12. Why didn’t radioactive sulfur enter the bacterial cell? 13. What scientists showed the am ...
DNA: Reading and Coloring The Blueprint of Life DNA
DNA: Reading and Coloring The Blueprint of Life DNA

... So, now, we know the nucleus controls the cell's activities through the DNA, but how? It is the sequence of bases that determine which protein is to be made. The sequence is like a code that we can now interpret. The sequence determines which proteins are made and the proteins determine which activi ...
DNA - Fort Thomas Independent Schools
DNA - Fort Thomas Independent Schools

... the cell what to do in order to stay alive  RNA: ribonucleic acid  You can always make more RNA so it’s ok if it gets destroyed (You can’t make more DNA!!!) DNA RNA ...
DNA Replication Computer Gizmo
DNA Replication Computer Gizmo

... tiny bacteria to massive blue whales. DNA also has the ability to replicate, or make copies of itself. This allows living things to grow and reproduce. In the previous chapter, you learned that before cells divide, they must first copy the DNA in order to maintain chromosome number. ...
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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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