Chris Brunelle Biology 112-online Professor Gaskin September 10‚ 2014 Minimal Organism “A minimal genome is generally defined as the smallest set of genes that allows for replication of the organism in a particular environment (Cho‚ M.‚ 1999). The creation of these minimal genomes can be helpful and harmful at the same time. There are many opinions out there about the subject‚ I will share some of those and my position on the subject. First let me just start with my personal position on minimal
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Summary of Chromosome 6 by author Robin Cook: Chromosome 6 begins with the murder of an infamous Mafia figure‚ Carlo Franconi. His Mafia competitors are the number one suspects for the shooting‚ and these suspicions rise when Franconi’s body disappears from the morgue before the autopsy is carried out. Medical examiner Jack is confused and interested by the case‚ along with his partner Dr. Montgomery. However‚ their attention is sidetracked by the arrival of a mutilated‚ unidentifiable body that
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Micro-deletion syndromes Di- George syndrome Aetiology Deletion of part of the long arm in chromosome 22 at location 22q11.2(1) The most common deletion includes the TBX1 gene (85% individuals)‚ see figure 1 below. Defect in neural-crest tissue (thyroid‚ thymus‚ and conotruncal septum of the heart) due deletion of region in chromosome 22 (2) Inheritance pattern is autosomal dominant (2) Hypoplasia of thymus and parathyroid glands resulting in hypocalcemia Acronym CATCH22 is used for
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Genetics Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a.|peas show easily observed variations in a number of characters‚ such as pea shape and flower color.| b.|it is possible to control matings between different pea plants.| c.|it is possible to obtain large numbers of progeny from any given
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“Eukaryotic chromosomes are generally much bigger than those of prokaryotes. In eukaryotic cells‚ replication may begin at dozens or even hundreds of places on the DNA molecule‚ proceeding in both directions until each chromosome is completely copied. Although a number of proteins check DNA for chemical damage or base pair mismatches prior to replication‚ the system is not foolproof. Damaged regions of DNA are sometimes replicated‚ resulting in changes to DNA base sequences that may alter certain
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Associate Program Material Genetics Worksheet Review the images below and answer the follow-up questions. Questions: 1. According to the pedigree‚ is cystic fibrosis inherited as a dominant or as a recessive trait? Explain how you made your conclusion using evidence from the pedigree and the principles of genetics. Cystic Fibrosis is a recessive trait. You have to inherit two copies of the allele to have cystic fibrosis. If
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Genetics and Disorders Candace Artis PSY 104 Child and Adolescent Instructor: Dominique Jeffery March 13th‚ 2013 In this paper I will be addressing the following questions: What are genes? How do genes of the two parents influence the traits of an offspring? What is Sickle Cell and who is at risk? How abnormalities can contribute to genetic and/or chromosomal disorders such as‚ sickle cell? Before I discuss genes‚ I have to tell what genes are. Genes are working subunits of DNA.
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Punnet square: dihibyrid cross- 2 parents w/2 different traits Ex: seed shape & seed color Cross pure-lines 2. F1 offspring are all heterozygous‚ Cross F1 x F1 F2 generation shows individuals of both phenotypes‚ in a specific ratio 9:3:3:1 -this would only occur if independent assortment = 2 alleles separate & sort independently into gametes Mendel Rules of inheritance Different alleles for the same gene Principle of segregation-each gamete has 1 allele of each gene Principle
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Genetic disorders are a topic in biology that can not be avoided. The fact is that genetic disorders can happen in humans‚ plants or animal. No one and nothing is safe from a genetic disorder. A genetic disorder can appear in the first years off life‚ or can appear much later in life when least expected. A basic principal of biology states that the behavior of chromosomes during the meiosis process can account for genetic inheritance patterns. There are many reasons for genetic disorders. To start
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Concept Check 14.1 C O N C E P T C H E C K 14.1 1. Pea plants heterozygous for flower position and stem length (AaTt) are allowed to selfpollinate‚ and 400 of the resulting seeds are planted. Draw a Punnett square for this cross. How many offspring would be predicted to have terminal flowers and be dwarf? (See Table 14.1.) 1. According to the law of independent assortment‚ 25 plants (1⁄16 of the offspring) are predicted to be aatt‚ or recessive for both characters. The actual result is likely
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