GENETICS - Essay Example

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Genetic engineering is the concept and practice of reorganizing or restructuring the genetic structure of a chromosome, at molecular levels, and often includes genetic manipulation like in gene cloning, gene transfer or therapy. In 1973 genetic engineering took a leap forward…
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Download file to see previous pages Almost all genetic engineering processes aim to make life easier, for those who suffer from genetic disorders. Some processes like genetic screening, even aim to recognize or diagnose disorders at an early stage, and even before the problems actually start showing their symptoms. Such early diagnoses would definitely help to prevent the disorder from reaching serious and debilitating conditions, thus saving lives. Gene therapy promises to replace the defective genes by normal and functional genes, thus bringing in a new hope for patients with no treatments available as such. However there is a dark side to all these bright envisions. Genes or chromosomes form the basic components of life, and scientists who work on genetic engineering are working with ‘life’ itself. Cloning which can create new organisms from a single DNA fragment makes a scientist equivalent to almost ‘God’, where the former is also creating new lives. It is here where one needs to have supreme control and not cross certain limits, or else what we saw in the science thriller movie’ “Boys from Brazil’, where the Nazis procreate 94 clones of Hitler to bring back the ‘Third Reich’, would not remain a science fiction anymore, and may become a distinct reality, if we are not careful.
The reproduction of humans and animals using artificial methods IVF, AI and embryo transplantation - Artificial insemination (AI), as defined by Nabor-Neri “artificial insemination is an impregnation not by means of natural intercourse, but by means of mechanical, artificial aids such as injecting the semen or sperm directly in to the female sex organ by the use of a tuberculin syringe” (Nabor-Nery, 81). This process is used as assisted reproductive techniques to impregnate the female partner where there is a case of fertility problems of the male partner, and also in ...Download file to see next pagesRead More
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...?A. The simpli of the DNA’s structure had stumped biologists and no one could accept the fact that a structure so simple can actually store important genetic information and help in transmission of the same. All the genetic information of a cell is stored in the molecules of the DNA present in the chromatin. The molecular structure of the DNA is responsible for its ability to store information (Campbell and Reece, 2009, p86).DNA is double stranded and is twisted to form a helical structure. The strands are made up of nucleotides. Each nucleotide is comprised of 3 parts; a 5-carbon sugar (deoxyribose), a nitrogen base and a phosphate group. The phosphate groups form a phosphodiester bond between the 3rd...
3 Pages(750 words)Assignment
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3 Pages(750 words)Essay
...? Genetics The of our were asked to go to lab and measure height using height scale during practical 10. The whole group of student consisted of male and female students. The heights measured then were arranged into their respective groups. The two groups as mentioned afore were male and female. Since the heights were measured without selecting a particular group of student the sample can be considered as convenient sample. The population from which the sample was drawn consisted of college students. Moreover, the data recorded the heights for year 2013-2014 class. The number of male students was 175 while that of female was 244. The data gathered in the initial stage was in the raw form then it was copied to excel in two...
6 Pages(1500 words)Assignment
...Genetics By [Presented to] of a Monohybrid cross: A monohybrid cross is a breeding experiment between parental generation organisms that differ in one trait. Monohybrid inheritance involves inheritance of a single trait. A monohybrid cross between two pure breeding plants, one that is a tall plant (dominant trait) and the other that is a short plant (recessive trait) is expected to produce an F1 (first) generation of plants that are al tall because the allele of tallness would dominant to shortness in the offspring produced. However, all plants produced in F1 generation would be heterozygous for their trait unlike their parents that were homozygous for their respective trait. If the F1 generation is further paired among...
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...of the of the of the Genetics Genetics is a science that studies the transfer of genes from one generation to the other. Genes determine the specific traits of individuals; such as appearance, height, hair color, skin color, and the color of the eyes (Heredity and Genetics). In addition, heredity has considerable bearing on the susceptibility of individuals to certain types of disease, their mental capabilities, and innate talents. The human cells consist of 46 chromosomes. Of these, two are sex chromosomes and 22 pairs are autosomal chromosomes. The sex of a human being is determined by the combination of these chromosomes; and males have a combination of 46, XY chromosomes, while...
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...Genetics tasks True-breeding organism is an organism that always passes to offspring a certain phenotypic trait. According to the Mendel`s laws true-breeding organism is an organism which shows a homozygote phenotype (Stansfield). All individuals who have short wings is recessive homozygotes with ww genotype; therefore, such flies with short wings are true-breeding ones. In order to find in mixture of fruit flies a true-breeding individual with normal wings it is necessary to conduct test cross analysis. To carry out this analysis flies with normal wings should be crossed with that who have short wings. Thus, obtained offspring that do not show segregation of wings size trait are heterozygotes (Ww), and therefore their...
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...Biotechnology Biotechnology is defined as an industrial study of science. It is one of the fields that integrate knowledge presented by different sciences to upgrade the lives of living things. Coulter, Meyers and Varacalli (2012, p.32) regard “Biotechnology as the application of the scientific and engineering principles to the processing of materials by biological agents to provide goods and materials.” From this assertion, one can deduce that the primary role of biotechnology is to upgrade the life and to increase productivity. Achievement of these roles, however, is enhanced by the change of the genetic codes of the DNA through the assistance of science. In connection with this, it is evident that biotechnology has led... to the...
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... twice. As a result of the division of a single diploid cell, two haploid cells emerge. Therefore, during the meiosis, four meiotic sexual haploid cells with altered heredity are produced and then genetic information is mixed. The second meiotic division is the same as mitosis one. As in mitosis, in meiotic anaphase II the single sister chromosomes (called chromatids) separate and move to opposite poles of the cell1. Meiosis is the basis of sexual reproduction because it occurs in maturing germ cells and leads to the appearing of new hereditary characteristics in the chromosomes. Q2 Explain the difference between a gene and an allele using specific examples (5%) Gene is the coding DNA sequence that placed in the specific locus... , the...
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...Genetics to twins may be of same genetic composition, 100 percent for identical twins and 50 percent for non-identical twins. More to the point, when twins are raised together, they may have similar behavior due to the environment in which they are raised in. On the other hand, in spite of a set of pairs of monozygotic twins carrying similar alleles for every gene, if they are raised in separate homes they may become different individuals. It implies that gene alleles differ across different environments. Yong-Kyu notes that varying family environments across the pairs may result in most significant differences between even identical twins. Due to environmental factors, they may differ in height,...
1 Pages(250 words)Assignment
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