Biology 103 Test 4 Chapters 9‚10‚11‚12 Multiple Choice 1) A monohybrid cross is A) the second generation of a self-fertilized plant. B) a breeding experiment in which the parental varieties have only one trait in common. C) a breeding experiment in which the parental varieties differ in only one character. D) a triploid plant that results from breeding two very different plants. E) a breeding experiment in which the parental varieties have only one prominent trait. 2) Which of the
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bones that are attached to the tympanic membrane which are malleus‚ incus and stapes) 3. inner ear – consists of oval window‚ semicircular ducts‚ cochlea and auditory tube HEARING – transduction of sound to neural impulses and its interpretation by the CNS HEARING LOSS – defect of any level from transduction of sound to the interpretation of sound NORMAL HEARING PHYSIOLOGY Conductive Pathway Neural Pathway Conductive Pathway (External auditory canal to cochlea) Neural Pathway (nerve
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Borrelia burgdorferi Overview: Lyme disease was first recognized in the United States in 1975 by Dr. Allen Steere‚ following a mysterious outbreak of juvenile rheumatoid arthritis near the community of Lyme‚ Connecticut. The rural location of the Lyme outbreak and the onset of illness during summer and early fall suggested that the transmission of the disease was by an arthropod vector. Adult female Ixodes tick (deer tick) From Brown University In 1982‚ the causative agent
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prokaryotic organisms to adapt to changes in many different environmental conditions (Spinola et al.‚ 2010). Adenosine triphosphate (ATP) transfers a phosphoryl group to a specific histidine kinase‚ which recognizes the stimulus to create a signal transduction in the cell. Upon the auto-phosphorylation of histidine kinase‚ the phosphoryl group is transferred to the receiver domain located on the response regulator. Phosphorylation causes a change in the response regulator confirmation‚ which then leads
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5. What determines where a protein kinase or protein phosphatase will perform its enzymatic activity? Answer: As protein kinase and protein phosphatase are the enzymes‚ they both perform their enzymatic activity by interacting at the specific binding site on the protein. Both of the enzymes recognize the specific amino acid sequence around the amino acid that is to be either phosphorylated or dephosphorylated respectively. 6. Why would a signaling pathway need to be regulated? Answer: Signaling
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“All literacy practices can be considered creative.” Discuss. (2000 words) Prior to any discussion on the topic‚ it is imperative that the definitions for the key terms are given so as to ensure complete clarity. Literacy practices refers to “people’s everyday practices of producing and interacting with texts.” (Papen and Tusting‚ p312) This can include basic and tedious practices such as filling in forms‚ to more interesting practices such as writing a newspaper article‚ or composing a song perhaps
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aminolevulinic acid (ALA) in the cell. This results in the production of Reductive Oxygen Species (ROS) that mediate cell injury. Arsenic poisoning leads to the impairment of intracellular and intercellular communication pathways. Its effect on signal transduction leads to build up of free radicals that mediate cell death or injury. Mercury poisoning results from methylmercury. It has inhibitory effects that resemble those of lead and uniquely induces the release of free radicals in cells. Cadmium mainly
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Exam Review – January 2013 Diversity Unit - List taxonomic ranks in order. What is the significance of this order? Domain‚ Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚ Species. Classification of species: kingdoms contain many different types of organisms‚ each taxon contains progressively fewer types of organisms‚ taxon “species” is narrowest category‚ containing only one type of organism. As you go from kingdom to species‚ organisms share more and more in common. - Explain and give an example
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Pleuritis or pleurisy is inflammation of the parietal pleura‚ which results in pleuritic chest pain. Pluera is consisted of two layers: inner layer called visceral pleura and outer layer called parietal pleura. While the visceral pleura does not have nocicpetors and does not give rise to the pain sensation‚ the parietal pleura can sense pain when inflamed‚ since it is innervated by numerous somatic nerves that have somatic pain receptors. Between the two layers‚ there is a space called pleural space
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Influenza virus is one of the well-explored the pathogens and development of flu vaccine is considered as the most efficient strategy to defense the outbreak. However‚ the variability of the antigen and rapid reassortant of the genetic segments weakens flu vaccine effectiveness. And the protection of flu vaccine could not contribute to clinical treatment when the patients suffer from severe illness. Therefore‚ the study of the interaction between pathogen and host immune response is needed. The Hannover
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