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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Ch. 51- FAP: sequence of behaviors that are usually carried through to completion. Habituation:loss of sensitivity to unimportant stimuli. Associative learning: associating one stimulus with another. Class. Conditioning: association of an irrelevant stimulus with a fixed physiological response. Cognition: animal’s ability to perceive‚ store‚ process‚ and use info. from its sensory receptors. Agonistic behavior: contest to determine which competitor gains access to a resource. Ch. 54- Nitrogen fixation:
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Genetic Manipulation of Lactococcus lactis by Using Targeted Group II Introns: Generation of Stable Insertions without Selection Courtney L. Frazier‚ Joseph San Filippo‚ Alan M. Lambowitz and David A. Mills Appl. Environ. Microbiol. 2003‚ 69(2):1121. DOI: 10.1128/AEM.69.2.1121-1128.2003. Downloaded from http://aem.asm.org/ on June 6‚ 2013 by UNIVERSITY OF DELHI Updated information and services can be found at: http://aem.asm.org/content/69/2/1121 These include: REFERENCES This article
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Using the DNA sequence‚ make a complimentary RNA strand from both the human and the cow. Write the RNA directly below the DNA strand (remember to substitute U’s for T’s in RNA) 2. Use the codon table in your book to determine what amino acids are assembled to make the insulin protein in both the cow and the human. Write your amino acid chain directly below the RNA sequence. Sequence 1 - Human C C A T A G C A C G T T A C A A C G T G A A G G T A A RNA : G G U A U C G U G C A A U G U U G C A C
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are used in immune systems to help protect our bodies from infecting viruses. This method involves the use of an enzyme known as Cas9 and a guide RNA. A virus’s DNA becomes spacers in the CRISPR sequence when the new virus infects the bacterium. This sequence will then begin the process of transcription in which it will become a guide RNA. This RNA will then be used to guide the Cas9 to locate the target sequence within the viral genome‚ so that the Cas9 can snip off this sequence and kill the
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N10/4/BIOLO/HPM/ENG/TZ0/XX 88106001 Biology HigHer level PaPer 1 Tuesday 2 November 2010 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8810-6001 17 pages © International Baccalaureate Organization 2010 – 2 – 1. N10/4/BIOLO/HPM/ENG/TZ0/XX [Question and image
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Name 3 classes of RNA and their function. Ribosomal RNA (rRNA) – rRNA combines with proteins to form ribosomes – Ribosomes – site of protein sysnthesis Transfer RNA (tRNA) – Transport correct amino acids to ribosomes and pairs up with an mRNA code for that amino acid – Proteins are polymers of amino acids joined by peptide bonds Messenger RNA (mRNA) – Conveys information from chromosomes to ribosomes – Genetic “blueprint” for making proteins 3. What is the function of RNA polymerase and
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Chapter 1 Section 1 Anatomy-Study of internal and external structures of the body and the physical relationships among body parts Gross Anatomy -involves the examination of relatively large structures and features usually visible with the unaided eye Microscopic Anatomy-deals with structures that cannot be seen without magnification Physiology-the study of function and considers the functions of the human body Anatomy and physiology are closely interrelated Theroretically Practically Anatomical
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acid. Some other types are RNA‚ mRNA‚ and tRNA. All of these "NAs" work together to help cells replicate and build proteins. NA? Hold on. Might that stand for nucleic acid? It might While you probably don’t have to remember the full words right now‚ we should tell you that DNA stands for deoxyribonucleic acid. RNA stands for ribonucleic acid. The mRNA and tRNA are messenger RNA and transfer RNA‚ respectively. You may even hear about rRNA which stands for ribosomal RNA. They are called nucleic acids
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