OCR BIOLOGY UNIT F221 Blood tests 1. Put a band (tourniquet) around the arm to make the vein stand out 2. Clean the area around the vein with an alcohol based solution 3. Push a sterile needle‚ attached to a sterile syringe into the vein 4. Pull back the plunger of the syringe to suck the blood into the syringe 5. When the necessary volume of blood has been extracted‚ remove the syringe and needle‚ loosen the tourniquet and press a small ball of cotton wool over the
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The Human Body The seven organizational approaches to studying the human body are body planes and body directions‚ body cavities‚ quadrants and regions‚ anatomy and physiology‚ microscopic to macroscopic‚ body systems and medical specialties. Body planes and body directions are the division of the body into sections from front to back‚ right and left‚ and top and bottom. These sections are called
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Certificate of Authenticity This is to certify that “K.SANTHOSH KUMAR” a student of class 12th has successfully completed the research product on the topic “HUMAN EVOLUTION” Under the guidance of Mrs. KALPANADEVI (PGT BIOLOGY) This project is absolutely genuine and does not indulge in plagiarism of any kind. This reference taken in making this project has been declared at the end of this project. Signature {Teacher
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“sticky ends” * H-bond to compliment bases of segments cut with same restriction enzyme Recombinant DNA 1. Isolate DNA from 2 sources * Bacterial plasmid w/2 genes * ampR(resistance to ampicillin) * lacZ(makes β galactosidase) * Human cell 2. Treat both w/ the same restriction enzyme * Recognition sequence cuts through lacZ gene in plasmid 3. Mix all DNA fragments with plasmids. * H-bonds bt/n bases temporarily hold “sticky ends” together 4. Add DNA ligase: creates permanent
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Engl101 Summary 1: “On the Non-Existence of Human Races” Frank B. Livingstone and Thedosius Dobzhansky discuss and argue their thoughts in their article‚ “On the Non-Existence of Human Races”. Race‚ in anthropology‚ can be defined as “referring to a group of local or breeding populations within a species” (Livingstone 279). Livingstone argues that the term race is hackneyed as an explanation of genetic variability among human populations. He emphasizes that this explanation is wrong in that
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GCSE Biology for teaching from September 2011 onwards (version 1.1) 3.3 Unit 1: Biology 1 B1.1 Keeping healthy Subject Content A combination of a balanced diet and regular exercise is needed to help keep the body healthy. Our bodies provide an excellent environment for many microbes which can make us ill once they are inside us. Our bodies need to stop most microbes getting in and deal with any microbes which do get in. Vaccination can be used to prevent infection. Candidates should use
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Bio1. Explain the significance of the principle of competitive exclusion. ............................................................................................................................................... ............................................................................................................................................... .......................................................................................................................................
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Josh P. AP Biology 12-10-13 Lab Writeup The Effect of Transformation of pGLO in Bacteria Background/Objectives/Hypothesis: Genetic transformation is a process that primarily is inserting new DNA into an organism to change that organism’s trait. This process has many useful benefits when used correctly in different organisms. In this lab‚ bacteria was transformed by inserting DNA for Green Fluorescent Proteins. The DNA for these proteins were taken from bioluminescent jellyfish Aequorea
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which had been free of cholera for more than one century. The disease spread rapidly in Latin America‚ causing nearly 400 000 reported cases and over 4000 deaths in 16 countries of the Americas that year. Economic and social impact In addition to human suffering caused by cholera‚ cholera outbreaks cause panic‚ disrupt the social and economic structure and can impede development in the affected communities. Unjustified panic-induced reactions by other countries include curtailing or restricting travel
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Calvin Williams Chapter 20 1. Advances in recombinant DNA technology allow scientists to work with smaller fragments of DNA‚ give them more tools to dissect and analyze DNA‚ and also allow for them to make many copies of a strand of DNA. 2. Restriction enzymes are made by bacteria to cut up invading DNA. They target specific base sequences in the DNA and then work to cut out those sequences from the DNA. 3. When a restriction enzyme cuts out a portion of DNA‚ it will sometimes leave a sticky
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