Apical dominance

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    The concentration of the auxin was not strong enough to maintain full dormancy of the lateral buds. The application of auxin is also dependent on the stage of development the plant is in for example auxin applied to a fruit tree can either drop the fruit or prevent the fruit from dropping depending on the stage the plant is in (Biology online.,(n.d)).According to scientific journals, like the plant journal, it is stated that cytokinin helps lateral bud growth as it allows the buds to escape apical dominance in plants but when synthetic auxin or natural auxin is applied it limits the amount of cytokinin to the buds causing the lateral buds to be dormant (Dorte et al.,2015). Auxin can be distributed in the plants unevenly due to light and gravity which can be the cause of the lateral buds being different lengths (Chang,A.,(n.d),p.1). Which means treatment one could have had more sunlight then treatment three. This also explains why the bean plants grew towards the sun because the light kills the auxin and slows the steam growth down and the leaves will grow more, hence the growth in the lateral buds…

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    Determining the impact of Auxin in pea plants, and its effect on lateral bud growth Megan Posey Bio 121-104 John Barry 10/23/16 Abstract Auxin is a hormone that helps to regulate bud growth, cell elongation, and many other aspects of plants. Apical dominance is a phenomenon that occurs due to the presence of auxin and stops lateral bud growth. In this experiment, we tested the hypothesis that a group of pea plants without treatment of auxin would have the most lateral bud growth, the 500 ppm…

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    Analysis of phenotype and genotype using Phenylthiocarbamide (PTC) variation taste sensitivity Introduction Taste occurs when chemical signals stimulate taste receptor cells in the oral cavity to detect tastes such as sweet, sour, salty, bitter and umami. PTC taste sensitivity is very common substance used to study taste perception. Many studies have provided insights into tastes perception using sodium benzoate and thiourea. PTC sensitivity has often been used for practical demonstrations in…

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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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    Ectodermal Dysplasia Jonathan Moon American Fork Junior High A2 2/24/17 Abstract Ectodermal Dysplasia is a group of conditions that interfere with the normal functions of skin, hair, nails, teeth or sweat glands. These abnormalities cause various issues with everyday activities such as eating, brushing hair, exercising, and blinking. This paper will explain how this disease occurs, its symptoms, diagnosis, and treatment. Causes of ED Ectodermal Dysplasia, or ED, is a genetic disorder that…

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    resources. In summary, ‘global business is where strategy meets geography’, (Spulber, 2007, p37). Throughout this text I will seek to demonstrate how Nokia co-ordinates business internationally in order to drive the company foreword. Home Country Features Nokia began its pursuit for global dominance using success in native Finland as a springboard for international expansion and technological development. After a history of industrial works, Nokia began to turn its attention to the…

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    “Chédiak-Higashi syndrome is an autosomal recessive immunodeficiency disorder characterized by abnormal intracellular protein transport,” (Nowicki ,“Chediak-Higashi Syndrome,” para.2). It is caused by mutations of the LYST gene which is also known as the CHS1 gene. This gene makes “a protein known as the lysosomal trafficking regulator,” (Genetics Home Reference, January 2014). They cause the lysosome to enlarge which ultimately causes problems with normal cell function. “Patients with…

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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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    To learn more about genetics, I conducted an experiment using Reebops to model how genetics is transferred from parents to offspring. At the beginning of my experiment I conducted four hypotheses, one for each of my four crosses. I had two monohybrid crosses and two dihybrid crosses. My first monohybrid cross hypothesis, was the antenna trait being studied is autosomal and undergoes independent assortment. My second monohybrid cross hypothesis, was the body segment trait being studied is…

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    Ebony Lab Report

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    Discussion: My first hypothesis that the sepia eye and ebony body experimental cross would result in a 9:3:3:1 ratio, and that the traits would be autosomal, unlinked recessive, was found to be false. I chose to reject my hypothesis because my calculated test statistic, 587.5, was larger than the critical value, 7.815. The traits, ebony and sepia, are linked, seeing that they fit in 2:1:1 linkage ratio and that the recombinant number is smaller (Table 1.1). They are autosomal; the amount of…

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