...1. Write an essay on protein structure and synthesis Protein synthesis is a cellular process leading to the production of proteins. This term is also synonymous to protein translation. It begins with a sequential process of transcription of DNA into mRNA, which is then used as input for translation after exon-intron splicing. The addition of successive tRNA molecules based on the code of mRNA matched up by base-pairing through their anti-codons in the ribosomes creates the nascent protein. After the protein chain has been synthesized, post-translation modification occurs, e.g. phosphorylation, motifs added to the protein. This may happen at various levels: secondary (alpha-helix, beta-sheets, turn, random coiling), tertiary and quarternary. Protein synthesis is also the process wherein peptide bonds between two amino acids whose formation is controlled. The synthesis begun when the mRNA combines in a little subunit of ribosomes close to an AUG sequence in mRNA. Start codon which is the AUG codon is being such because it does the coding of the first amino acid to be made of protein. “The AUG codon base-pairs with the anticodon of tRNA carrying methionine. A large ribosomal subunit binds to the complex, and the reactions of protein synthesis itself can begin. The aminoacyl-tRNA to be called for next is determined by the next codon (the next three bases) on the mRNA. Each amino acid is coded for by one or more (up to six) codons” (Center for Bioenergy and Photosynthesis...
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...Apart from studying Further Maths, Biology and Chemistry, I regularly compete in scientific competitions, with my proudest moments including a Gold at the British Chemistry Olympiad, a Silver at the Cambridge Chemistry Challenge and a qualification in British Mathematical Olympiad round 1, amongst others in Maths and Physics . These experiences have earned me an honorary academic scholarship, but even more importantly have only whetted an appetite for me to learn even more about the creative application of these fields in solving...
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...Biology: Concepts and Connections, 6e (Campbell) Chapter 12 DNA Technology and Genomics Multiple-Choice Questions 1) When DNA fingerprinting was first used, A) genetic evidence was collected using only DNA from blood. B) blood samples from theGenomic libraries can be constructed using either bacterial plasmids or what other vector? crime scene were used to match the blood of a person who confessed. C) the two semen samples did not match the person who initially confessed. D) genetic testing revealed that the two murdered girls were killed by two different people. E) the DNA evidence was not convincing enough to convict the suspect. Answer: C Topic: Opening Essay Skill: Factual Recall 2) Biotechnology A) is a modern scientific discipline that has existed for only a few decades. B) is strictly concerned with the manipulation of DNA. C) has only been used successfully in the area of forensic science. D) has been around since the dawn of civilization. E) is generally considered more harmful than valuable to society. Answer: D Topic: 12.1 Skill: Factual Recall 3) When DNA from two sources is combined into one single piece of DNA, it is known as A) cloned DNA. B) recombinant DNA. C) a vector. D) a plasmid. E) a DNA library. Answer: B Topic: ...
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...STAGE 2 BIOLOGY ASSESSMENT TYPE 1: Investigations Folio Issues Investigation Human Awareness Essay – Source Analysis Should all babies be DNA fingerprinted at birth? Article to be evaluated: Website: Genetics and Public Issues – ELSI (Ethical, Legal and Social Issues) – http://darwin.nmsu.edu/ Reliability: This source is a reliable one as it was developed by Dr. Clay Dillingham and Dr. Susan Root. They are professionals, educated in the technique and knowledgeable about the subject with years of experience as scientists in the field. Therefore it is expected to have some reliability. Bias: This article presents both the advantages and disadvantages of the topic of storing everyone’s DNA sequences and is not biased in either direction. It gives the scientific facts and procedures of DNA fingerprinting and continues to give the good effects and also the issues it would cause in the public. It explains how DNA fingerprinting would benefit us, referring to the solving of criminal offenses, detection of possible future diseases of the subject, clues about possible behavioral traits, and other medical information. This is the positive side. The article also discusses the negative side and questions the accessibility of the DNA fingerprints and the information they hold. The effects on the public if the information was misused are discussed including the impact on individuals in relation to seeking insurance policies...
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...BIO 566 INTRODUCTION TO BIOPHYSICS QUIZ 2 MAC-JULY 2012 Question 1 Write an essay on spectroscopy which includes : (15 marks) Basic principles, nature of electromagnetic radiation, types of spectra-(absorbance, emission and fluorescene) types of spectroscopy – (principle, instrumentation and applications of atomic absortion spectroscopy, UV Visible Spectroscopy, Nuclear Magnetic Resonance Spectroscopy and Electron Spin Resonance Spectroscopy) Spectroscopy is the study of the absorption and emission of light and other radiation by matter, as related to the dependence of these processes on the wavelength of the radiation. More recently, the definition has been expanded to include the study of the interactions between particles such as electrons, protons, and ions, as well as their interaction with other particles as a function of their collision energy. Spectroscopic analysis has been crucial in the development of the most fundamental theories in physics, including quantum mechanics, the special and general theories of relativity, and quantum electrodynamics. Spectroscopy, as applied to high-energy collisions, has been a key tool in developing scientific understanding not only of the electromagnetic force but also of the strong and weak nuclear forces. The basic principle shared by all spectroscopic techniques is to shine a beam of electromagnetic radiation onto a sample, and observe how it responds to such a stimulus. The...
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...CARIBBEAN EXAMINATIONS COUNCIL Caribbean Advanced Proficiency Examination CAPE ® BIOLOGY SYLLABUS Effective for examinations from May/June 2008 CXC A10/U2/07 Published by the Caribbean Examinations Council All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means electronic, photocopying, recording or otherwise without prior permission of the author or publisher. Correspondence related to the syllabus should be addressed to: The Pro-Registrar Caribbean Examinations Council Caenwood Centre 37 Arnold Road, Kingston 5, Jamaica, W.I. Telephone: (876) 630-5200 Facsimile Number: (876) 967-4972 E-mail address: cxcwzo@cxc.org Website: www.cxc.org Copyright © 2007, by Caribbean Examinations Council The Garrison, St Michael BB14038, Barbados CXC A10/U2/07 ii Contents RATIONALE.....................................................................................................................................................1 AIMS ..................................................................................................................................................................1 SKILLS AND ABILITIES TO BE ASSESSED ...............................................................................................2 PRE-REQUISITES OF THE SYLLABUS .......................................................................................................5 STRUCTURE...
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...“ Kelp (Ascophyllum Nodosom) Organic Fertilizer a Solution for Enhancing the NPK content on soil” Proponents: Welle John Palero Mariane Arciga Pia Veronica Tidalgo III- Tourmaline Mrs. Teresita B. Balaba Project Adviser Table of Contents Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Chapter I Background of the Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Statement of the Problem Statement of the Objective Statement of the Hypothesis Significance of the Study Scope and limitations Definitions and Terms Chapter II Review of Related Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Chapter III Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chapter IV Results and Discussions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11 Chapter V Conclusion and Recommendation . . . . . ....
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...Scientific Research and Essays Vol. 5(14), pp. 1796-1808, 18 July, 2010 Available online at http://www.academicjournals.org/SRE ISSN 1992-2248 ©2010 Academic Journals Review Biodiesel production from Jatropha curcas: A review Wilson Parawira Department of Applied Biology, Kigali Institute of Science and Technology (KIST), Avenue de I' Armee, B. P. 3900 Kigali, Rwanda, E-mail: aparawira@yahoo.co.uk. Tel: +250785561670. Accepted 2 July, 2010 Biodiesel has attracted considerable attention during the past decade as a renewable, biodegradable and non-toxic fuel alternative to fossil fuels. Biodiesel can be obtained from vegetable oils (both edible and non-edible) and from animal fat. Jatropha curcas Linnaeus, a multipurpose plant, contains high amount of oil in its seeds which can be converted to biodiesel. J. curcas is probably the most highly promoted oilseed crop at present in the world. The availability and sustainability of sufficient supplies of less expensive feedstock in the form of vegetable oils, particularly J. curcas and efficient processing technology to biodiesel will be crucial determinants of delivering a competitive biodiesel. Oil contents, physicochemical properties, fatty acid composition of J. curcas reported in literature are provided in this review. The fuel properties of Jatropha biodiesel are comparable to those of fossil diesel and confirm to the American and European standards. The objective of this review is to give an update on the J. curcas...
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...|After 35 years, Sikolohiyang Pilipino gets world respect | | | |By Vincent Cabreza | |Philippine Daily Inquirer | |First Posted 11:08:00 12/29/2010 | | | |Filed Under: Children, Culture (general) | | | |GOOD SAMARITANS have started reaching out to children who are caught in a violent conflict or a debilitating cataclysm, using a | |psychological tool designed by a Filipino 35 years ago. | |Dr. Rogelia Pe-Pua, head of University of New South Wales? School for Social Sciences and International Studies...
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...Biology: Concepts and Connections, 6e (Campbell) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards, like lions, can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual Recall 2) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? A) ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue B) cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community C) organism, organ system, tissue, population, organ, community, cell, ecosystem, molecule D) molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem E) ecosystem, molecule, cell, tissue, organism, organ system, organ, community Answer: D Topic: 1.1 Skill: Factual Recall 3) What is the difference between a tissue and an organ system? A) The tissue level of organization is more inclusive than the organ system level. B) Tissues are not composed of cells; organ systems are composed of cells...
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...Biology: Concepts and Connections, 6e (Campbell) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards, like lions, can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual Recall 2) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity? A) ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue B) cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community C) organism, organ system, tissue, population, organ, community, cell, ecosystem, molecule D) molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem E) ecosystem, molecule, cell, tissue, organism, organ system, organ, community Answer: D Topic: 1.1 Skill: Factual Recall 3) What is the difference between a tissue and an organ system? A) The tissue level of organization is more inclusive than the organ system level. B) Tissues are not composed of cells; organ systems are composed of cells. ...
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...Biology guide First assessment 2016 Biology guide First assessment 2016 Diploma Programme Biology guide Published February 2014 Published on behalf of the International Baccalaureate Organization, a not-for-profit educational foundation of 15 Route des Morillons, 1218 Le Grand-Saconnex, Geneva, Switzerland by the International Baccalaureate Organization (UK) Ltd Peterson House, Malthouse Avenue, Cardiff Gate Cardiff, Wales CF23 8GL United Kingdom Website: www.ibo.org © International Baccalaureate Organization 2014 The International Baccalaureate Organization (known as the IB) offers four high-quality and challenging educational programmes for a worldwide community of schools, aiming to create a better, more peaceful world. This publication is one of a range of materials produced to support these programmes. The IB may use a variety of sources in its work and checks information to verify accuracy and authenticity, particularly when using community-based knowledge sources such as Wikipedia. The IB respects the principles of intellectual property and makes strenuous efforts to identify and obtain permission before publication from rights holders of all copyright material used. The IB is grateful for permissions received for material used in this publication and will be pleased to correct any errors or omissions at the earliest opportunity. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted...
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...National Curriculum Statement (NCS) Curriculum and Assessment Policy Statement LIFE SCIENCES Further Education and Training Phase Grades 10-12 basic education Department: Basic Education REPUBLIC OF SOUTH AFRICA CurriCulum and assessment PoliCy statement Grades 10-12 life sCienCes CAPS LIFE SCIENCES GRADES 10-12 department of Basic education 222 Struben Street Private Bag X895 Pretoria 0001 South Africa Tel: +27 12 357 3000 Fax: +27 12 323 0601 120 Plein Street Private Bag X9023 Cape Town 8000 South Africa Tel: +27 21 465 1701 Fax: +27 21 461 8110 Website: http://www.education.gov.za © 2011 department of Basic education isBn: 978-1-4315-0578-4 Design and Layout by: Ndabase Printing Solution Printed by: Government Printing Works CURRICULUM AND ASSESSMENT POLICY STATEMENT (CAPS) LIFE SCIENCES GRADES 10-12 FOREWORD by thE ministER Our national curriculum is the culmination of our efforts over a period of seventeen years to transform the curriculum bequeathed to us by apartheid. From the start of democracy we have built our curriculum on the values that inspired our Constitution (Act 108 of 1996). the Preamble to the Constitution states that the aims of the Constitution are to: • heal the divisions of the past and establish a society based on democratic values, social justice and fundamental human rights; improve the quality of life of all citizens and free the potential of each person; lay the foundations for a democratic and open society in which...
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...and therefore fossil fuels should be replaced with clean energy sources to reduce carbon dioxide and greenhouse gas emissions. In addition, energy demand today is much higher than ever before and it will increase by fifty percentages in the next 20 years according to Energy Information Agency (IEA) report. The main alternative energy sources to fossil fuel are biofuels which have received much attention worldwide and they have already generated 45% of all energy from natural fuels in Brazil.(Sims & Taylor, 2008) The most widely used biofuel is the first generation biofuel which is make from plants like sugarcane, oilseed. By using these kinds plants, ethanol and oil can be produced.(Ahmad, Mat Yasin, Derek, & Lim, 2011) In this essay, innovations in biofuels will be divided into 3 sectors with examples illustrated. 2. The Innovation Dimension 3.1 Innovation Type Innovation can be divided into four types: production innovation, process innovation, position innovation and paradigm innovation. (Tidd, Bessant, & Pavitt, 2005)In the biofuel sector, product innovation and process innovation are widely used. Product innovations are changes in the products which an organization offers. Process innovations are changes in the ways in which they are created and delivered. 3.2.1 Product Innovation Product innovations take place when the market requires new features of the established product. (Tidd, Bessant, & Pavitt, 2005)For example, first generation...
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...http://cls.casa.colostate.edu/transgeniccrops/what.html What Are Transgenic Plants? A transgenic crop plant contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. The inserted gene sequence (known as the transgene) may come from another unrelated plant, or from a completely different species: transgenic Bt corn, for example, which produces its own insecticide, contains a gene from a bacterium. Plants containing transgenes are often called genetically modified or GM crops, although in reality all crops have been genetically modified from their original wild state by domestication, selection and controlled breeding over long periods of time. On this web site we will use the term transgenic to describe a crop plant which has transgenes inserted. Image:Results of insect infestation on Bt (right) and non-Bt (left) cotton bolls. Source: USDA | Why Make Transgenic Crop Plants? A plant breeder tries to assemble a combination of genes in a crop plant which will make it as useful and productive as possible. Depending on where and for what purpose the plant is grown, desirable genes may provide features such as higher yield or improved quality, pest or disease resistance, or tolerance to heat, cold and drought. Combining the best genes in one plant is a long and difficult process, especially as traditional plant breeding has been limited to artificially crossing plants within the same species or with closely related...
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