DNA Fingerprint Analysis Essay

acid, or DNA, is a nucleic acid. DNA is a double-stranded molecule comprised of numerous nucleotides covalently bound together. Nucleotides contain a deoxyribose sugar, a phosphate group, and one of four nitrogenous bases. The four nitrogenous bases are adenine (A), thymine (T), guanine (G), and cytosine (C). To construct DNA’s double helix, hydrogen bonds form between two complementary nitrogenous bases. These bonds only form between adenine and thymine and between guanine and cytosine (“DNA”).…

Abstract This case study examines Jack the Ripper and the horrible acts of violence he committed in the East End of London during 1888 where five women were murdered. These murders received so much media coverage that what would have been the terrible tragedy of five people being murdered became one of the most famous series of murders and the killer became one of the most terrifying of all time. During this case study, I will describe some current techniques that could have been used in the…

fischeri) thus aiding in creating a restriction map of the lux operon. It also employs typical molecular techniques important for biologists to understand. In this portion of the lab, the chromosomal DNA (chDNA) will be isolated. Its purity will be measured using spectrophotometric analysis. Lastly, the DNA will be digested and verified via gel electrophoresis. A. fischeri is a gram negative rod shaped marine bacteria that exhibits bioluminescence and is both found free-living or in…

recognition? If you dissect the word “Biometrics” you get “Bio” stand for life and “Metrics” which is measurment. Biometrics recognition is the science that is able to identify your speech, fingerprints, movement, and even your face. There are many different uses for biometric software; Police records use fingerprints to create a profile for people to be referred to. Speech recognition is more commonly seen in smartphone devices. The main purpose for biometrics is to easier recognize individuals…

and combined between people under the bracket of one common denominator: deoxyribonucleic acid (DNA) (US. Congress, Office of Technology Assessment, 1990). In many cases, criminals take the initiative to clean up the crime scenes, which involves fixing furniture, wiping the place for fingerprints or wearing gloves. Additionally, there are also attempts to remove larger stains of blood. Hence, the use of DNA as a tool for forensic investigation cannot be overstated as almost all the cells in the…

Dror et al (2006), contextual information is defined as, information that provides an understanding of the context of an event or issue. In forensic investigations, contextual information affects most areas of forensic science, from blood pattern analysis, to crime scene management; however, contextual information can produce a number of different outcomes with the exact same evidence (Houck & Siegel, 2015). According to Bernstein et al (2013), contextual information can lead to the complete…

Bloodstains can be key evidence to a crime because the patterns can be as unique as finger prints by giving direction, height and angel of the blood spatter. Since no one in the world has the same DNA you could figure out exactly who the blood came from and if you know where the killer or victim was you could triangulate the position of the crime. It also can give you a time frame for the crime by the way the blood coagulates and dries. There are three types of bloodstains passive stains,…

fingerprinting to track down the murder and the bystander. How you can see fingerprinting is not with the naked eye but with a special light. Fluorescent dye light. You can also use cyanoacrylate (superglue) processing. This process show the fingerprint. This fingerprint method could be helpful in the story that I'm reading. The dead girls of Hysteria Hall. The detective, Delia when she died , she could…

Science Period 5 Fingerprints Your name is your identity. It gives you access to your bank account, social security number, and gives everyone else a way to know you, even in a crowd of people! In the same way that your name gives you a way to be recognized, fingerprints can provide a clue to your identity. They are crucial to understanding your genetics. The little lines reveal hints to your genes, and even can let you glimpse your DNA! It seems impossible, but it’s true. Fingerprints can…

According to http://www.encyclopedia.com, DNA which stands for deoxyribonucleic acid is used for human genetic makeup. It has different sequences of bases and exist in human body. The sequence of it nucleotides are A, T, G, C; or, adenine, thymine, guanine, and cytosine, respectively. A DNA fingerprinting, is a DNA pattern that has a unique sequence such that it can be distinguished from the DNA patterns of other individual. The two major uses for the information is for personal identification…