AST 309 part 2: Extraterrestrial Life The Origin and Evolution of Life on Earth Overview • The formation of Earth • Pre-biotic chemistry (Miller-Urey exp.) • First evidence for early life • The evolution of life • Extreme life on Earth: lessons for astrobiology A timeline for the very early history of the Earth The formation of Earth: The Earth formed over ~50 Myr via planetesimal accretion Earth differentiation: The iron "drops" follow gravity and accumulate towards the core. Lighter materials
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bacteria of their species with the same gene that allows resistance to the antibiotic. This means that more of their offspring will also carry those genes and again reproduce and continue to pass on those genes. Over time, more bacteria will contain DNA with genes allowing them to resist antibiotics and continue to reproduce. Because mutations do occur, it is possible to mutate genes to make them more or less fit for survival. Evolution / development does not occur in an
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_____________________________________________________ e. GACCACACA _____________________________________________________ 4. Fill out the missing parts of the chart bellow. If there is more than one answer, please write all possibilities. Order of Triplet in DNA Order of Codon in mRNA Amino Acid Coded for in mRNA __________________ GAA ______________________ _ ____ GCA ___________________ ______________________ ____ __________________ UCA ______________________ _ ____
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allows mRNA to take place. mRNA is the processes of making a copy of DNA. In the eukaryotic cells, the amanitin toxin directly interacts with an enzyme called RNA polymerase II; thus, decreasing transcription of mRNA (Nardo, 2012). Thus causing cellular death. Reference Chen, P. (2010). Retrieved December 28,2015 from http://bio1151.nicerweb.com/Locked/media/ch17/summary.html Brown, A. (2010) Theory of Knowledge Biology Topic 3.4 DNA Replication. Retrieved December 27, 2015from http://www.tokresource
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from a living being while Physical evidence refers to any type of evidence that they draw from a non-living organism. Examples of physical evidence are fibers, fingerprints, footprints, building materials and paints among others. On the other hand, DNA and bloodstains are some of the examples of biological evidence (Swanson Et Al., 2012). To me, the most interesting type of physical evidence is fingerprints. Fingerprints are one of the few things that one is sure not denying that it belongs to him
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Pepper Seed DNA Extraction Biochem lab: CHE 452L marisol gomez Pepper Seed DNA Extraction Biochem lab: CHE 452L marisol gomez 2015 2015 INTRODUCTION The jalapeno is a member of the capsicum family, along with many other peppers. The usual methods for characterization of different pepper species are based on their morphological and physiological traits, however this many not always be enough. For peppers, their traits are influenced by things like their genotype or their specific environment
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as a whole. Sagan comments that all life on this planet shares a number of characteristics, including one three-letter answer to the question of what is the master molecule? DNA What IS the master molecule? Do you think it is significant that all life on the planet shares the use of this code? Why or why not? DNA is made of nucleotides which have four chemical parts, “adenine,
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Who Committed the Crime? #26 5 December 2013 Partner: C.C. Objective The reason for doing this experiment was to find out which suspect committed the crime of murder. The purpose and importance of this experiment was to take the blood samples found at the crime scene, analyze them and see whether the blood sample matched suspect A, the victim’s half sister or suspect B, the victim’s ex-boyfriend. Hypothesis Based on the information acquired, the educated guess of the suspect that
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determine features like eye colour, and the inheritance of disorders such as cystic fibrosis. DNA the nucleus controls the activities of a cell. The instructions for how an organism develops are found in the nuclei of its cells Chromosomes Chromosomes are structures found in the nucleus of most cells. They consist of long strands of a substance called deoxyribonucleic acid, or DNA for short. A section of DNA that has the genetic code for making a particular protein is called a gene. The proteins
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Evolution Evolution is the process of change that has transformed life on Earth DNA Deoxyribonucleic acid: a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix Biology The scientific study of life Emergent properties New properties that arise with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases. Systems Biology An approach to studying biology
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