1. Outline the process of DNA profiling (genetic fingerprinting)‚ including ways in which it can be used. 6 marks • sample of DNA obtained / leucocytes / from mouthwash / hair / other named source • satellite DNA / repetitive sequences used for profiling • amplification of DNA by polymerase chain reaction / PCR • cutting DNA into fragments using restriction enzymes • separation of fragments of DNA (by electrophoresis) • separation according to the length of the fragments • pattern of
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things in a particular physical and chemical environment. In practice‚ "biodiversity" suggests sustaining the diversity of species in each ecosystem as we plan human activities that affect the use of the land and natural resources. Why is biodiversity important? Everything that lives in an ecosystem is part of the web of life‚ including humans. Each species of vegetation and each creature has a place on the earth and plays a vital role in the circle of life. Plant‚ animal‚ and insect species interact
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leaves‚ mosquitos‚ humans‚ beetles‚ water‚ blue grass‚ sunlight‚ moss‚ soil‚ worms‚ pine trees‚ and the air (containing oxygen‚ nitrogen‚ and carbon dioxide). What are the biotic components of your front yard? The biotic components are the blue grass‚ moss‚ and pine trees. The biotic components are the cardinals‚ raccoons‚ bees‚ mosquitoes‚ beetles‚ blue grass‚ moss‚ worms‚ and pine trees. The biotic components are the cardinals‚ robins‚ raccoons‚ bees‚ mosquitoes‚ humans‚ beetles‚ blue grass
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Honors Biology (modified from Foundation Notes) Unit 1 Early Topics Main Sections * Definition of Biology * Characteristics of Life * Levels of Organization * SI Units and Relative Size * Scientific Method * Classification and Binomial Nomenclature Definition of Biology CHAPTER 1 Biology can be broadly defined as the “study of life” or the “study of living things”. It includes molecules that are made‚ used by‚ or derived from living things. It
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AP BIOLOGY EXAM ESSAY (FREE RESPONSE) QUESTIONS General directions: Answers must be in essay form. Labeled diagrams may be used to supplement discussion‚ but in no case will a diagram alone suffice. It is important that you read each question completely‚ and answer each section of the question. When giving examples‚ the first ones you give will be the ones graded. (if two examples are asked for‚ and you write about 4‚ make sure the first two are the best ones; they are the only ones counted
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Question 1 : The distribution of organisms in a community is affected by the biotic factors and abiotic factors. Abiotic factors are the non-living components in the ecosystem such as air‚ water‚ soil‚ temperature and light intensity. Biotic factors are the living components in the ecosystem such as animals and plants. In an ecosystem‚ the living organisms live together in their non-living environment and function as a unit. This dynamic system starts with species‚ populations‚ ecosystems‚ communities
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shark and a remora Parasitism: a situation in which one organism lives in or on another organism and harms it. Example: a tick and a deer Ecological Succession Ecosystems are constantly changing in response to natural and human disturbances. Changes that occur in a community over time is called ecological succession. Succession can be a slow and gradual response to physical changes such as a change in rainfall or temperature. Succession can also be abrupt due to such things
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species. From a young age‚ I have had an appreciation of the importance of science as well as a desire to understand it‚ especially biology. I have always found the human body particularly fascinating. The area of study that is of particular interest to me‚ is the study of cells‚ This brings me to the one career that I would absolutely love to learn more about‚ cell biology. A cell biologist is a scientist
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Physiology Paper R. Steiner Principles of Biology Anette Griego “Humans and chimpanzees split around five million years ago. Ever since then‚ we (and they) have changed a bit to adapt to the different environments we invaded and created” (Gitig 2009). Organisms need to adapt both physiologically and anatomically in order to survive in changing environments. For example‚ Tibetans have developed genes to help them adapt to life at high elevation. While most humans would become very ill at such high altitudes
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Syllabus—Biology 100 Dr. B. Pozos Welcome! Course Philosophy Biology 100 is an exciting and important course for non-science majors that applies general concepts in Biology towards every day living. Part of my philosophy behind this course is governed by the dual realizations that 1) healthcare delivery is very confusing to patients who do not understand biological terminology and processes and 2) that for many of you‚ Biology 100 will be your first and last science course. Eventually all
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