Chapter 14 Genetic Engineering Choose the best answer for each question. 1. Using this key‚ put the phrases in the correct order to form a plasmid carrying the recombinant DNA. Key: 1) use restriction enzymes 2) Use DNA ligase 3) Remove plasmid from parent bacterium 4) Introduce plasmid into new host bacterium. A. 1‚ 2‚ 3‚ 4 C. 3‚ 1‚ 2‚ 4 B. 4‚ 3‚ 2‚1 D. 2‚ 3‚ 1‚ 4 2. Which is not a clone? A. a colony of identical bacterial cells B. identical
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increased resistance to herbicides or improved nutritional content. The enhancement of desired traits has traditionally been undertaken through breeding‚ but conventional plant breeding methods can be very time consuming and are often not very precise. Genetic engineering‚ on the other hand‚ can create plants with the exact desired trait very rapidly and with great accuracy. For example‚ plant geneticists can isolate a gene responsible for drought tolerance and insert that gene into a different plant. The
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Neurofibromatosis Full description Neurofibromatosis occurs in 1 in 3‚000 to 4‚000 individuals in the United States. Although many affected people inherit the disorder‚ between 30 to 50 percent of new cases occur because of a spontaneous genetic mutation from unknown causes. Once this mutation has taken place‚ the mutant gene can be passed on to succeeding generations.  Symptoms There are many symptoms for Neurofibromatosis. These include: six or more light brown spots on the
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Genetic diversity analysis The five primer combinations amplified 13 fragments ranging in size between 50 to 400 base pairs‚ of which 9 (69.23%) were polymorphic (Table 5). The highest number of amplification products was obtained with the primer combination me5-em9 and the lowest with me4-em4 while the average number of bands among the five primer pairs was 2.6 (Figure 1). The number of polymorphic fragments for each primer combination varied from 0 to 4 with the average number 1.8. (Table 5)
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http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20100/bio%20100%20lectures/genetics-genes/mendelia.htm Challenging Crosses (punett squares) Questions? 1. What are the expected offspring produced by a cross between a heterozygous black short-haired guinea pig and a homozygous white‚ long-haired guinea pig. Assume Black color (B) and short-hair (S) are dominant traits. 2. The ability to roll the tongue into almost a complete circle is conferred by a dominant trait‚ while
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Introduction Prenatal genetic testing‚ also known as prenatal diagnosis or prenatal screening‚ tests for diseases and disorders in a developing fetus or embryo. It is typically used for detecting Down’s syndrome or other chromosome abnormalities‚ spina bifida‚ cleft palate‚ Tay-Sachs disease‚ sickle cell anemia‚ thalassemia‚ cystic fibrosis‚ muscular dystrophy‚ and fragile X syndrome. There have been multiple ways to test for these diseases/disorders over the years‚ including (but not inclusive
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Genetic Drift Worms Lab 1. The average number of generations it took for the smaller population to become fixed was 10.2. 2. The average number of generations it took for the larger population to become fixed was 10.9. 3. In the smaller population I started off with six variations of the worm and ended with one variation. In the larger population I started off with 12 variations of the worm and ended with 1. 4. Genetic drift caused the changes in these populations. 6. Genetic drift has a
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Genetic Drift as an Evolutionary Force Becky Gonzalez Genetics 2450 Lab Section 1262 March 2‚ 2011 Genetic Drift as an Evolutionary Force Genetic drift‚ along with natural selection‚ mutation‚ and gene flow‚ is one of the basic evolutionary forces of evolution. Evolution is the method by which allele frequencies in a population change over time. This process can be random‚ where the changes occur through genetic drift (Hahn and Bentley 2003)
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The majority of people that have Parkinson disease appear to be random cases‚ but new studies have shown that specific genetic defects may increase the chances of developing Parkinson disease. Ten “Parkinson Disease Genes” have been identified‚ but only three specific genes have been found to be directly related to causing Parkinson disease. Recent investigations in familial-linked Parkinson disease have found that mutations in α-synuclein‚ parkin and DJ-1 have been clearly linked to Parkinson
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history‚ scientists and physicians have tried to find the exact cause of the disorder‚ but only in the last 30 years been able to confirm genetics as a culprit. Advances in research have enabled scientists to accurately pinpoint genetic variants that can alter each patient’s reaction to certain medication and treatment methods. Scientists are studying the genetic underpinnings of bipolar disorder in order one day‚ in the future‚ to be able to provide personalized medication and treatment plans for
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