well as identify the principle involved in each chemical test. Different procedures and different test compounds were applied‚ and results were noted as for changes in colors of precipitates or solutions. For Dische Test‚ light blue was obtained for RNA and dark violet for DNA. For Murexide Test‚ a yellow layer was obtained with a mixture of red color and eventually became yellow or orange after addition of warm water. For John-Wheeler Test‚ a violet precipitate was obtained and lastly for Phosphate
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One Health- Exam One 1. A) Why is the One Health paradigm important? The One Health initiative is a change in basic assumptions that focuses on surveillance of the environment‚ animals‚ and humans to predict occurrence of an outbreak before it happens. This is important in improving the health of communities because preventative measures will be used and it also makes people aware of what could happen if preventative measures were not taken. Scientists and doctors worldwide collaborate to develop
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Chapter 4: Nucleic Acids and the RNA World 1. 4.1 – What is a Nucleic Acid? * Nucleic acids are made up of monomers called nucleotides * Three components of a nucleotide: 1. Phosphate group—attached to the 5’ carbon 2. Sugar – carbonyl group and several hydroxyl groups 3. Nitrogenous base * The prime (‘) symbols indicate the carbon being is part of the sugar—not attached to the nitrogenous base. * Four different nucleotides‚ each of which contains a different nitrogenous
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Chapter 18 The Genetics of Viruses and Bacteria Lecture Outline Overview: Microbial Model Systems Viruses and bacteria are the simplest biological systems—microbial models in which scientists find life’s fundamental molecular mechanisms in their most basic‚ accessible forms. Molecular biology was born in the laboratories of microbiologists studying viruses and bacteria. Microbes such as E. coli and its viruses are called model systems because of their use in studies that reveal broad biological
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Section 10-2 VOCABULARY REVIEW 1. mRNA carries genetic information from the DNA in the nucleus to the cytosol of a eukaryotic cell. 2. tRNA is a chain of RNA nucleotides that are folded into a hairpin shape and can bind to a specific amino acid. 3. Transcription is the process by which genetic information is copied from DNA to RNA. 4. A promoter is a region of DNA that marks the beginning of the DNA chain that is to be transcribed. MULTIPLE CHOICE 1. c 2. d
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RABIES Abstract: Each year‚ approximately 55‚000 individuals worldwide die from an infection due to the rabies virus. Rabies is a life-threatening disease caused by an RNA virus that is usually transmitted to humans through bites from rabid animals. More recently‚ reports of transmission by means of organ transplantation have been reported. Since human rabies is nearly 100% fatal if prophylactic measures are not followed‚ an increased awareness of who should receive prophylaxis and
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The Prophet Muhammad: a mercy for all creation “Indeed‚ in this [Quran] is notification for a worshipping people. And We have not sent you‚ [O Muhammad]‚ except as a mercy to the worlds.” (Quran: 21:106-107) Allah’s Messenger was the kindest of men in the same way as he excelled all others in courage and valour. Being extremely kind-hearted‚ his eyes brimmed with tears at the slightest sign of inhumanity. A Companion‚ Shaddaad bin ’Aws reported the Apostle as saying: "Allah has commanded you to
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starts. This was the procudure that Chambone used to show that RNA polymerase 2 keys on the position of the TATA box. RNA pol
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Uncontrolled transposition is deleterious to the cell and thus‚ the frequency of transposition is generally kept to a minimum by various regulatory mechanisms. Describe the FOUR ways that transposition is controlled. Transposition is the movement of a particular fragment of DNA from one part of a genome to another. A transposon is a segment of DNA which is capable of moving from a specific location on a DNA molecule to another location on the same or different molecule. For this reason‚ it is
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polymerase binds b. Repressor binds c. RNA polymerase binds d. Inducer binds 3. _______________ enzyme forms RNA based on the information carried on DNA strand. a. DNA polymerase b. RNA polymerase c. DNA helicase d. A & C 4. Operator is a site where‚ a. DNA polymerase binds b. Repressor protein binds c. RNA polymerase binds d. DNA helicase binds 5. Mutation is defined as _________________. a. A permanent change in DNA b. A permanent change in RNA c. A permanent change in protein 6
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