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Topics > Biochemistry > Molecular Biology

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Do cell sizes differ, depending on the size of the organism?
The researchers hypothesized that larger organisms are not necessarily composed of larger cells than smaller organisms. This hypothesis was based on the premise that many organism are composed of specialized cells that perform different functions and those cells may vary in size. The examination of four cell specimens from organisms of varied sizes supported the researchers' hypothesis. The four c

Difficulty: High school

Does nature prefers strands and helices in building biomolecules?
I used a computer to make model peptides with repeating pentapeptide blocks of the type of [AAAAA](n) and [DAAAK](n), where n is the number of blocks; n=1-4. I modeled extended, strand, and helical structures. I measured and compared the stabilities of the peptides with and without energy minimization. I used the programs Insight II, IsisDraw, and DeepView.

Difficulty: High school

Manipulation of PGE(2) Levels with Various Cytokines of Thyroid Associated Ophthalmopathy
Graves# Disease is a form of hyperthyroidism often accompanied by Thyroid Associated Ophthalmopathy (TAO), an autoimmune-mediated inflammation of the extraocular connective tissue. Despite numerous studies to locate the specific factors that regulate the swelling and produce an effective cure, neither of these goals has been achieved. Recently, scientists discovered that Prostaglandin E(2) (PGE(2)

Difficulty: High school

Studying the GST-Y10 Protein: Is the C-domain Resonsible for Histone Interaction?
The NAP1 protein is the protein that assembles nucleosomes and organizes DNA inside the nucleus of cells. The aim of this experiment is to determine whether the GST-Y10 protein has the ability to bind histones. The experiment will consist of two major steps; creating the GST-Y10 protein and a pull down assay using the produced protein and histones.

Difficulty: High school

The effect of pollutants on light bioluminescent bacteria
This year for our science fair project we decided to work with bioluminescent bacteria. We heard of bioluminescent bacteria through our science teacher. From there we decided to investigate. Bioluminescence is the giving off of light by an organism without heat. We read that bioluminescent bacteria are being used to diagnose the amount of pollution in water. We believe that the pollutants will

Difficulty: Middle school

Use of Quartz Crystal Microbalance to Study Antibody Antigen Interactions
The Quartz Crystal Microbalance (QCMB) is a simple device. The adsorption of a compound on the quartz surface causes a decrease in the resonance frequency that is proportional to the mass adsorbed. My goal was to use the QCMB to prepare a biosensor capable of measuring baculovirus particles.

Difficulty: High school

What is the Effect of Anhydrous Ammonia on the Dehydration Rate of Plant and Animal Cells?
The purpose of this experiment was to compare the dehydration rate of plant and animal cells exposed to anhydrous ammonia. The information gained from this experiment could help people preserve food. Also it will help with food transportation because dehydration cuts down the weight by taking away the moisture. This could also help space travel.

Difficulty: Middle school

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