Free Biology Essay Examples and Topics | Page 38

Introduction about cell cycle by emphasizing DNA replication Biology Research Paper

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DNA replication occurs in cells to ensure that the daughter cells contain genetic material from the parent cell through a process known as semi-conservative replication (Kurth & Gautier, 2010). DNA replication relies

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Brainscapes Case Resolution Template Biology Case Study

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Alzheimers disease(AD) is characterized by neural cell death thus the concentrations of sodium in the hippocampus (which is the most affected part of the brain in AD) might be an indicator of the presence of AD as well as the extent of disease. 2) How does the change in

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Analysis of Brachyury Gene Biology Essay

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According to Beddington, Rashbass, and Wilson (1992: 159), the nature of the well-known mouse mutant, Brachyury (T) in cloned mice is revealed by its sequence, which is “an open reading frame of 436 amino acids”. In the blastocyst stage embryo, this T gene is present in the inner cell mass, which is then followed by the primordial stripe.

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The Structure and Function of the Endocrine System in the Body Biology Essay

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They include the steroids, peptides, and the amines. The effects of hormones may last for few hours or many days and weeks. They control metabolism, sleep, tissue functions, sexual development and function, emotions, growth, and

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The Comparative Biology of L.minor and S.rotundifolia Biology Essay

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This is unlike other plants that show seasonal growth trends characterized by observable skips in a total population where there is room for alteration of shape and size as they respond to changes in density. Because of these above features, the two plant species remain to be most ideal for population growth experiments.

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Dirty Water Bill Biology Assignment

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Congress). Leaving clean water policy completely to states does not work since waters do not follow state boundaries. Any forms of pollutants put in one state’s waters do not

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Sport, and Use of Anabolic Androgenic Steroids Biology Essay

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Thorolfur Thorlindson conducted research named “Sport, and use of anabolic-androgenic steroids (AAS) among Icelandic high school students: a critical test of three perspectives”. The purpose of this research was to figure out whether sports are the main reason due to which high school level students abuse AAS or whether there are other factors that contribute to this abuse.

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Review of the movie Outbreak 1995 Biology Movie Review

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The primary settings of the film comprise government disease control centers, CDC and the USAMRIID, as well as the fictional-small town of Cedar Creek. Outbreak demonstrates the extent the civilian and military agencies can go

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Reproductive System Biology Assignment

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The male reproductive system includes the testes (which produce sperm), penis, epididymis, vas deferens, ejaculatory ducts and urethra. The female reproductive system consists of the ovaries (which produce eggs or oocytes), fallopian tubes, uterus, cervix, vagina and vulva.

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Types of STDs Biology Assignment

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Sexually transmitted diseases (STDs) — or sexually transmitted infections (STIs) — are generally acquired by sexual contact. The bacteria, viruses or parasites that cause sexually transmitted diseases may pass from person to person in blood, semen, or vaginal and other bodily fluids.

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Mutagenesis and mapping of a mouse gene, clock essential for circadian behavior Biology Article

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Current molecular work with the Neurospora frequency and Drosophila period genes show that circadian cycles of frequency and period transcriptions, in that order, may

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Biology Behind Multiple Births Biology Assignment

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What causes you to get pregnant with multiples? A multiple pregnancy means you're pregnant with more than one baby. Multiple pregnancy usually happens when more than one egg is fertilized. It also can happen when one egg is fertilized and then splits into 2 or more embryos that grow into 2 or more babies.

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Plants in the Deserts of the Middle East Biology Essay

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Some examples of plants in the deserts of the Middle East include mangrove Avicennia marina, Ziziphus spp., and Acacia spp. (Baranouny, 2001, p. 10). The species of plants in the Sahara desert are xerophytes. Other plant species found in the deserts of the Middle East include grasses, trees, halophytes, and shrubs.

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Dubai International airport Biology Essay

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The data will be collected by use of structured interviews on a sample of people. Review article and sites about emirates airline organization will also be utilized. The answers derived will be written down to be used for analysis of the information gained.

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Management of food quality Biology Essay

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has been rapid advances in food technology, with processing and packaging techniques to help ensure the safety and wholesomeness of the food supply as more convenient food. In spite of these advances, contamination of the food supply by either naturally happening or

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Scientific Writing Biology Essay

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It has the mechanisms of recognizing pathogens and external materials as non-self and consequently mounts an immune response against them.

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Ethogram Lab Report Biology Assignment

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An observation was conducted on the afternoon of 5th April 2013, in a vegetative backyard, composed of trees that form a habitat for a variety of birds, with plenty of litter leaves underneath. The bird was at its most active time of the day going about its activities of food collection and socializing. The species in observation is the robin chat.

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Design your own greenhouse Biology Assignment

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Below is the calvins cycle where it takes place. Temperature- different plant varieties requires different temperatures.the correct amount of temperatures should

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Stem Cell Research Biology Essay

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In the treatment of neurological diseases, I would have to side with those who think stem cell research is beneficial to man because, ultimately, I support a practice that could improve the life of

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Coronary Heart Disease as One of the Leading Causes of Death in the United States Biology Essay

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When temperatures are low or when it is cold, vasoconstriction i.e. the tightening of the blood vessels near the skin occurs and nerve impulses are sent to the skeletal muscles and this causes shivering. This process prevents the loss of heat to the air and conserves the heat within the body to keep it warm.

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Scale-Free Brain-Wave Music from Simultaneously EEG and fMRI Recordings Biology Research Paper

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Hua Yang, Jing Lu, Dezhong Yao, Dan Wu, Chaoyi Li and Cheng Luo come from the ministry of Education and the school of life and technology which is based in china. Chaoyi Li come from the Shaghai Institute for Biological Science while Hau

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Scientific misconduct Biology Essay

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This paper will endeavor to examine all of these in detail. Fabrication referred to as making up and repowering results or just recording them.

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Scientific Lab Biology Research Paper

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Basing on the results the most likely bacteria were: for the unknown A, was Klebsiella pneumoniae which is a typical rod shaped bacterium, a Gram-negative, lactose fermenting, facultative anaerobic, encapsulated and non-motile. For the

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Identification of unknown Bacteria Biology Research Paper

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The author states that basing on the results the most likely bacteria were: for the unknown A, was Klebsiella pneumoniae which is a typical rod shaped bacterium, a Gram-negative, lactose fermenting, facultative anaerobic. For the unknown B: It was likely to be Salmonella Typhimurium bacteria which is a typical nonspore-forming rods.

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Powerful Women in Politics Biology Term Paper

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All the female politicians holding reputable positions in their governments are, therefore, evidence that women are capable of political leadership. Most of these female politicians have performed impeccably in their roles, through their power of skilled decision-making. This signifies that more women in politics would possibly lead to more positive changes in their countries.

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What is the role of sonication during protein extraction Biology Assignment

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According to Tan and Yiap (2009, 3) protein extraction is a process that isolates protein from a biological material such as conserved tissues and cell. Protein purification is important as it allows the analysis and study of different

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Biology lab report ( includes abstract, intro, results, dissections ) Biology Lab Report

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The genetic variation of both populations was examined by gathering six microsatellite loci genotypes from each population and then the data was utilized to measure observed heterozygosity, which was then used to make comparison between both populations of Western

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Physiology research paper Biology Research Paper

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In a subset of patients, it is associated with genetics and an autosomal dominant inheritance. The researchers Bates et al. studied the natural history of pathological changes of autosomal-dominant Alzheimer’s

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Complete a lab report using the scientific method Biology Lab Report

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Prior research has reported that the influence of soil variability and the crop performance is extremely pronounces in regions of the tropical (Moorman, 2005). In

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Origin of Species by Means of Natural Selection Biology Assignment

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According to Darwin (1859), the environment plays a crucial role in shaping the behavior and appearance of organisms. As organisms interact with the environment, they become adapted, depending on their demands. The man who went to the North interacted with a set of different environmental conditions that made him become light-skinned.

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Analysis of the Article about the Circadian Oscillator Located in the Prokaryotic Cyanobacterium Biology Article

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The research article by Mor, Binder, and Johnson delves into one of the functions of the circadian oscillator located in the prokaryotic cyanobacterium. To this end, the authors explore its function about time regulation as far as cell division is concerned within cultures that are growing rapidly.

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Analysis of Multilevel Regulation of the Circadian Clock Article by Cermakian and Sassone-Corsi Biology Article

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This can be done mainly on feedback loops at the transcriptional level. However, the article revealed that circadian rhythms are not only generated and regulated at the transcriptional level but also in the post-transcriptional level, post-translational mechanisms, chromatin remodeling, clock proteins availability, and intracellular localization.

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Explain monohybrid inheritance including co-dominance Biology Assignment

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Monohybrid inheritance entails a cross between two parents possessing different forms of a gene (alleles) referred to as monohybrid inheritance. Parental characteristics passed in this manner are primarily determined by genes

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Plant experiment only methodology Biology Essay

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These nutrients play various roles in plant growth. Nitrogen aids in grain formation in cereals (Huifeng, Zhenghui and Qiangsheng). Phosphorus helps in nodule formation in legumes such as beans (Pachecoa, Britoa and Straliotto). This experiment analyzes the effect

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Read the assigned readings and answer questions regarding gram stain and lab safety Biology Essay

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Clean up of broken glasses will reduce the danger of one being cut or injured by them. Containing small fires should always be

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Environmental Cause of Adaptive Radiations Biology Essay

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Adaptive radiation is a process where many niches branch out from an original niche. Biodiversity, as defined by Wilson, refers to a term that scientists use to explain the existence of diverse life forms. The environment causes such evolutionary development of adaptive radiations when an invading lineage is influenced by ecological niches (Wilson 108).

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Mutation That May Lead to Breast Cancer Biology Assignment

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The mutation that occurs makes the chromosomes fail to separate completely. Mutations located on the 17th chromosome are likely to result in cancer. The mutation of this allele is the only factor that is normally associated with or involved in cancer. Women with a mutant allele will develop cancer (Saunders 12).

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Weight Management: Overweight, Obesity, and Underweight Biology Research Paper

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Establishing healthy eating behaviors and advice that will keep an individual fuller is a beneficial tool in weight management (Toll 1125). By individuals understanding what their body requires, is vital to weight management and regulate overeating and under eating of food. Weight management does not involve fad nutrition that stimulates quick, temporary weight loss or weight gain.

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INFLUENCES ON DIET AND HEALTH Biology Assignment

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Mr Toll is a diabetic, and his condition is known to have serious health implications which might include diet overhaul. Diabetes has serious physical limitations and may cause morbidity issues. The physical complications might be compounded with

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Hepatitis C virus in Africa (focus on Ethiopia) Biology Research Paper

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However, the identification took up to a decade before it could be properly singled out and was initially referred to as non a, non b hepatitis (NANBH). The existence of the virus was finally confirmed in the year 1988 by DR.

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The Role of Oxytocin in Parturition Biology Essay

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Prolactin then induces the secretion of milk in the glands. Though oxytocin has no direct role in milk production it plays an important role in the release of milk or the reflex of “milk let-down” (Mackenna & Callander, 1997). The infant’s suckling acts as the stimulus which initiates the release of oxytocin from the pituitary.

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Plant Gene Expression Biology Article

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It is seen that peripheral tissues of plants and animals also seem to have circadian rhythms. However, the central regulator of these circadian clocks in the intact organism is unknown. While it is known that peripheral circadian clocks exist, it is not known whether these clocks are mutually coupled or whether they are centrally regulated.

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Human genome Biology Research Paper

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The three billion components are referred to as nucleotides and are structured into DNA molecules. The nucleotides are represented by 4 letters namely A, C, G, and T, and it stands for adenine, cytosine, guanine, and

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Antiseptics ( 70%, 91% Isopropyl and Iodine) on Ecoli growth Biology Lab Report

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E coli belong to the Enterobacteriaceae entric bacteria that are facultative anaerobic Gram-negative rods and are mainly found in the gastrointestinal tract of human beings and other warm-blooded animals. The

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Forensic Biology and Chemistry Biology Resume/CV

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I have profound experience in General Biology where I undertook laboratory reports, poster sessions, and various research projects. In addition. I also have experience in Genetics chemistry and Cell biology. Additionally, I have experience in the Biology of Microorganisms where I identified unknown bacteria.

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Investigative Lab proposal Biology Assignment

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As the blood pressure can be affected by environmental factors such as temperature, I will carry out the experiment in our home where we have controlled temperatures maintained at 37 degrees Celsius. I will use six out of the ten members of our family who are on one

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How dialysis treatment for kidney failure relies on an understanding of the principles of diffusion Biology Essay

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Naturally, the kidney organ is a dialyzing organ. When blood passes through the kidney, essential compounds are separated from harmful compounds. Molecules such as urea are small and

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Independent Photoreceptive Circadian Clocks Throughout Drosophila Biology Article

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The article reviews the expression of luciferase or green fluorescent protein from the promoter of the clock period in order to monitor the circadian clock in explanted abdominal tissues, head, and thorax in transgenic drosophila. The observed photoreceptive properties of the explanted tissues indicate the role of unidentified photoreceptors in photic signal transduction of the clock.

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JAWS: anatomical correlates of feeding behavior Biology Case Study

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The overlapping between the thick and thin filaments of sarcomeres along the myofibrils in skeletal muscle such as the masseter determines the

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The heart rate of Daphnia magna Biology Lab Report

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For an ectothermic animal, when it becomes cold, its rate of heart beat becomes lowered and when the animal becomes warmer, heart rates of such animals becomes raised. Increase in temperature need not be sufficiently

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Biology Essays