Phenotype

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    Variation is the fuel that feeds evolutionary change and it originates at the levels of phenotype and genotype. Environments of organisms are greatly influenced by biotic factors such as predation and competition, but are also influenced by abiotic factors such as human activity and climate. In biology, disturbances are changes within environmental conditions that cause intense changes in ecosystems. Some organisms poorly suited for their local environment can respond adaptively by altering their phenotype to suit their location. We understand this as phenotypic plasticity, but what has the weather got to do with it? Why do individuals decide to alter their phenotypes instead of altering their habitat? Are there any costs and limits of plasticity? And what does it…

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    Originally it was believed that all traits are blended together. Due to the work of Gregor Mendel, though, it was shown that characteristics are a result of inherited factors, known as genes1. Genes are units of heredity on a chromosome that bring about our existence and create diversity. This diversity arises from the fact that there are different forms of genes known as alleles. All the alleles of an organism are referred to as that organism’s genotype and results in an organism’s phenotype,…

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    The Importance Of Genetics

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    The phenotype appears to be dependably to be a result of its genotypic and ecological impacts. Phenotypes may shift significantly notwithstanding when genotypes continue as before. For instance, when people of Asiatic extraction move to the United States, their kids (if raised in this nation) have a tendency to be bigger than the guardians and their grand­children even bigger. This implies an adjustment in phenotype however not really an adjustment in genotype. Better sustenance may build the…

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    Gaucher's Disease

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    N370S mutation leads to Type 1 Gaucher’s, while L444P leads to type 2 or type 3 Gaucher’s disease. Patients with the N370S variant often bear distinct phenotypes than those with the L444P variant. That being said, the relationship between the phenotype and the genotype are not well understood. Individuals with identical genotypes for the GBA1 alleles may still experience drastic differences in phenotypes. Research carried out by molecular biologist Rosa Salvioli noticed the involvement of an…

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    Homozygous Phenotypes

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    offspring receives is the average of both of its parents. This concept was widely believed until Mendel’s experiments. Incomplete dominance occurs when the heterozygous phenotype is an intermediate between both of the homozygous genotypes. This concept is demonstrated best through the inheritance of petal color in a snapdragon. In a heterozygote the phenotype would be pink, a mix between the homozygous genotypes of red and white. This happens because neither allele is dominant, so the colors…

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    Wild Type Phenotypes

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    Conclusion Inheritance of drosophila from each allele from 4 of the 5 tests shows a 3:1 dominance, favouring the wild type (+) phenotype. The wild type (+) phenotype was tested and experimented on against the other eye colour phenotypes, including wild type, brown, purple, sepia and white. It was easily evident that every F1 on each test was solely wild-type dominant. Since, for example, +/+ with SE/SE can only make +/SE which can be discovered using a Punnett grid, making the first generation…

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    Phenotype Fly Lab Report

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    ABSTRACT In this experiment we set up crosses between mutant and wildtype flies in order to find similarities to Mendel’s work with pea plants. We did this by placing females in vials with males and waiting one week. After one week we obtained the second generation and were able to observe the different phenotypes that resulted from the cross. We were able to count each phenotype under a microscope and record the number of each type. We used this data to calculate the chi square value, which…

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    Fly Phenotypes Lab Report

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    1. Objective The objective of this lab is to test whether the dominant phenotype in flies is actually straight wings red-eyed using data stimulated from the FlyLab software. Hypothesis The mode of inheritance in flies is that red eyed, straight winged flies are the wildtype characteristics that are autosomal dominant and white-eyed, vestigial wings are the mutated characteristics. 2. Methods a. Performed a cross between a red-eyed straight winged female fly and a white-eyed, vestigial winged…

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    This essay first explains the meaning of genotype, phenotype and heritability, the relation between them and mental health. Then, it will discuss and demonstrate examples on the interaction between genetic and environmental aspects in forming the temper, and the development of depression; it also shows how much each of these factors plays a role in the development of mental illnesses. In addition, it explains theirs roles in the phobias’ aetiology and treatment, and in the coping strategies and…

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    Perpetually Malicious Author Stephen Kendrick once stated in his book The Love Dare,“Almost every sinful action ever committed can be traced back to a selfish motive. It is a trait we hate in other people but justify in ourselves.” Almost every iniquity in the world has been caused by narcissism. Selfishness thrives in humans, feeding off of their evilness. People forget that evil exists within themselves as well, not just their peers. Evil is a very loose term, however the most clear denotation…

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