Definition: Epigenetics are the changes in the gene expression which are not caused by changes in the DNA sequences‚ meaning it a change in the phenotype but not the genotype. It is the study of the genes that are possibly inheritable. The environment you live in plays a key role in epigenetics and how your genes are expressed. How does epigenetics have anything to do with digestion? A chemical tag is something that can alter a gene expression. It attaches onto the DNA and blocks transcription.
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The Frequency of Mutations among Second Generation Drosophila melanogaster INTRODUCTION This experiment involved observing and comparing the relative frequencies of inherited dominant and recessive genes in a population using the common fruit fly Drosophila melanogaster. In this experiment‚ we demonstrate how dominant genes are selected over recessive genes (Mendel’s Law of Independent Assortment). Hypothesis: If we cross two heterozygous individuals‚ our observed offspring in the second
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Evolution Unit: Objectives AP Biology Upon the completion of the textbook readings in Chapters 22-26 you should be able to: Chapter 22 1. Explain how the principle of gradualism and Charles Lyell’s theory of uniformitarianism influenced Darwin’s ideas about evolution. The basic idea of natural selection is that a population of organisms can change over the generations if individuals having certain heritable traits leave more offspring than other individuals. The result of natural selection
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iences ife Sc L Guide Study 12 Grade © Department of Basic Education 2012 s fe Science Li e Study Guid 12 Grade © Department of Basic Education 2012 First published by the Department of Basic Education in 2012 222 Struben Street‚ Pretoria South Africa enquiries Office of the Director General Mr P.B. Soobrayan Email: njobe.p@dbe.gov.za Email: whittle.g@dbe.gov.za Tel: (012) 357 4010 Fax: (012) 323 5837 http://www.education.gov.za Call Centre: 0800202933 Copyright ©Department of Basic Education
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Do we truly have free will? It is the ability to make a decision without hindrance. Human nature‚ neuroscience‚ everyday life are contributing factors in free will. Human nature deals decisions that focus on the awareness of the conscious mind. For instance‚ free will enables humans to control and carry out their own decisions. Contrary to Freud’s belief‚ free will is dependent upon personal “motives‚ convictions‚ and intentions.” To specify‚ external forces do not completely establish human behavior
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Bio 100 Lecture Final Study Guide (All answers are true or false) 1. The level of scientific thought that we have the most certainty in is the hypothesis. 2. Controlled science experiments have no validity in biology research. 3. All living things obtain energy from their environment. 4. The four organic macromolecule groups common to all living things are carbohydrates‚ proteins‚ nucleic acids‚ and fats. 5. All living things are composed of one or more cells. 6. Humans are
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contributions did he make to science? His study of genetics led to an increase interest in the study of genetics. His biggest contribution to the study of science was his discovery of particulate inheritance‚ dominant and recessive traits‚ genotype and phenotype‚ and the concept of heterozygous and homozygous. 3. Which species did he work with? Mendel worked with the simple pea pod plant in his 8 year science experiment 4. State his 4 hypothesis The first part‚ or law‚ states that‚ "Alternative
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One method used to obtain the “pure aryan race” was the lebensborn program‚ the word Lebensborn means “Fount of Life” (SS). The Nazis invented this program in order to create more supervised mating between pure aryan women and loyal SS men‚ so that their offspring would be more “Biologically valuable” (Reich 771). The lebensborn program used private funding‚ and was seen by the Nazis as a place for pregnant aryan women to go and receive protection while they were carrying a child. Mothers were allowed
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Plants vs. Zombies: A Lesson on Artificial Selection and Classification Team Name: Team Members: Performance Task: There is a Zombie Apocalypse caused by a comet that traveled too close to the earth. People who were not sheltered during the comet’s passing were turned into zombies. It is believed that the comet was created by aliens to prepare our planet for invasion. Plants and Fungi were also affected by the comet and mutated and now carry many unusual traits. For some unknown reason these plants
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Syndactyly is a congenital or birth defect that occurs during fetal development‚ usually at the time of formation of the organs. This disorder consists of fusion of one or more fingers and is the most common of all hand deformities (Jordan‚ Hindocha‚ Dhital‚ Saleh‚ Khan). Syndactyly is the failure to differentiate between the fingers because of the failure to separate into individual appendages. The digits may be joined simply by skin or in more complex case’s‚ the actual bone may be fused together
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