Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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involved in the identification of restriction fragment length polymorphisms. Restrictions were carried out using three different restriction enzymes‚ ECORI‚ HindIII and BstELI with their buffers. Lambda (λ) DNA was then examined using electrophoresis and Southern blotting. The results showed that λ DNA was best digested by EcoRI as all of the expected bands can be seen and are in the right place. The HindIII digestion was second best as there was a large amount of merging and the bands contained a lot
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BioLab3 DNA Structure and Function Lab Report Student Name: I. DNA Structure Define the following terms: Purines A colorless crystalline compound with basic properties‚ forming uric acid on oxidation. Pyrimidines A colorless crystalline compound with basic properties; a substituted derivative of this‚ especially the bases thymine and cytosine present in DNA. Nucleotides A compound consisting of a nucleoside linked to
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The Gene Lab 1. Introduction The purpose of this report is to inform dog breeders of a very common genetic disease known as Progressive retinal atrophy (PRA). The report will also inform buyers of the disease so they are aware of the disorder and they can check to dog’s pedigree for the disease. PRA could affect any dog‚ as a result of this it is recommended that the offspring should be examined by a board-certified veterinary ophthalmologist and screened for the existence of the disorder.
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Mallory Charland February 9‚ 2015 Mutations of E. coli Lab Report Advanced Biology Deducing Mutations of the Lac Operon of E. coli Abstract: In this lab we determined a possible mutation in unique bacterial strains of E. coli by observing the proper responses of wild type E. coli Lac Operon as a control group. Mutated strains of E. coli were placed in four test tubes‚ each containing a different substance (lactose‚ glucose‚ water and lactose and glucose)
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genome is a circular molecule ‚ have little non-coding DNA‚ and have their genes tightly packed with few intergenic regions between genes. Furthermore‚ mitochondria are organelles that contain a separate set of DNA from the rest of the cell and the body. Mitochondrion DNA contains 16‚569 nucleotides and contains 37 genes. These genes are all involved in the production of energy and storage of ATP. The point of this lab is to understand how DNA can mutate over
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’Neil 2002). The particular conditions that had to exist for this to apply were that the population had no mutation‚ had no natural selection‚ was a large population‚ had only random mating‚ and had no migration. For the cases to follow later in the lab‚ Cases 1 and 2 exemplify Hardy-Weinberg conditions. All of the others either have selection or not enough members in the population‚ which will be the most-closely observed
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When forensics or forensic sciences are mentioned‚ most individuals think about the crime that forensics entails. The gore‚ the blood splatter analyses‚ bullet projections‚ DNA analyses‚ death investigations‚ semen stains‚ bite marks‚ and rape kits to name a few things that involve forensic investigations‚ but those things are just a small part of a much larger picture. Forensics is extremely broad. Forensics is the application of the scientific method and biology‚ chemistry‚ computer science‚ and
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Abstract:Conjugation is a natural occurring process that involves the transfer of DNA from one cell into another through a physical connection between the cells. In the following experiment‚ two strains of Escherichia coli bacterial cells (donor F’lac+strs and recipient F-lac-strr) underwent conjugation to produce a transconjugant strain (F’lac+strr). MAC plates and streptomycin were utilized to determine if conjugation had occurred. When plated‚ the donor colonies appeared red and the recipient
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12/12/2014 Forensic Scientist Technician What’s the Job title? A forensic scientist and my hope is to write an essay that can express my passion and love for this career. I hope that it will enlighten you and inform you of what a great career I have chosen for myself. My desire is to think as the great minds in forensic science. I also‚ want to prove that I will be a potential criminologist. Forensic investigators work on cases involving a person’s death
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