DNA

Introduction DNA is called deoxyribonucleic acid. This contains a phosphate group, sugars, and a complementary base. DNA is found in plants and animal cells in the nucleus. The nucleus is the control center where DNA is replicated or produced within a cell. DNA also contains our genetic material. This is possible due to differences in individual’s phenotype and genotype. DNAs structure is double helical; meaning two strands are parallel to each other and in a ladder formation. This can occur…

DNA fingerprinting is a method where a collection of fragments of DNA found at a crime scene are used to match other fragments of DNA. It is used in crime cases when visual identification is not available and aids in determining whether the suspect is present at the crime scene or not by using bodily fluid (saliva) or blood found at the crime scene. It can also identify the victim whose body is disfigured. The concept that everyone has different genetic code except for identical twins is really…

A DNA molecule made in vitro with segments from different sources is known as, Recombinant DNA. Recombinant DNA, otherwise known as rDNA, is an artificial DNA strand, created by combining gene sequences with one another. In order to create a rDNA you must first isolate the DNA donor, as well as the vector. Bacterial plasmids are commonly used, so for this explanation it will be used as the vector. The next step is to cut the DNA. This is possible with the help of restriction enzymes, which act…

affects the mass of DNA extracted from the kiwi (g) Mass of DNA extracted from kiwi (g) Set Mass of Soap in extraction solution (g) Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 1 0.5 1.25 0.74 0.24 2.04 0.30 2 1 1.41 1.38 1.26 1.52 1.36 3 1.5 1.91 1.48 2.39 2.63 2.00 4 2 2.43 3.34 3.26 3.01 3.62 5 2.5 2.65 4.00 5.32 3.52 3.95 All results are recorded with 2 decimal points for higher accuracy Numbers highlighted in yellow are outliers Qualitative Observations: In all of the sets, DNA has formed as…

DNA sequencing and information is useful in many fields of science and technology. DNA ideally can be used to identify specific organisms because most organisms don’t possess the same DNA.The use of DNA to try to identify specific organisms is called DNA fingerprinting. DNA fingerprinting involves creating a DNA fingerprint using gel electrophoresis, which is the process by which DNA is broken down into fragments and then sorted by positive electrodes (after negative electrodes repel them from…

presenting the evidence such as DNA evidence that they have found on the crime scene and eyewitness testimony to the judge before he decided the outcome of the trial. [1] This makes us wonder about the possibility that these DNA evidence and witness testimony could be wrong and which one is more superior compared to the other in solving crime cases. I would like to discuss the value of DNA evidence vs witness Testimony in the next few paragraphs. DNA evidence refers to DNA samples that are taken…

DNA Modification DNA is the ultimate carrier of an organism’s genetic information. The particular sequence of amino acids determines a being’s height, eye color, susceptible diseases, and precise blueprint. Recent studies have shown that this genetic outline does not have to be permanent. New fields of science such as epigenetics and germ line editing are slowly reshaping the status quo of genetics. Genetic modification is no longer limited to food and animals because scientists are…

DNA Profiling Introduction DNA profiling is a scientific process that was founded in 1985 by a Leicester University Geneticist Alec Jeffreys. DNA profiling can be defined as gathering tiny amounts of genetic materials from a sample of blood which belongs to one individual and using it as a method of identification via biological analysis. One of the methods used in DNA profiling is Polymerase Chain Reaction (PCR) Which is a 3 step process used to amplify small segments of DNA. Firstly the DNA…

a nationwide DNA databank being founded. This databank would be a collection of every citizen’s DNA compiled into one place. There is a heavy debate regarding this matter. Those who are advocating for it state that it would help decriminalize the country, but there are concerned citizens who are uncomfortable with giving their DNA to the government due to the uncertainty of its protection. It could be wise for the United States to establish a DNA databank. With every citizen’s DNA at the…

With DNA sequencing, you can send a sample of your DNA in to a lab to have it sequenced. Basically, this means that someone will thoroughly examine and look into your DNA. This can be beneficial for a few reasons; these are some of the top benefits of DNA sequencing. 1. Find Out More About Who You Are For some people, DNA sequencing is a good thing simply because it allows them to find out more about themselves. For example, your DNA can show things like your ethnicity. If you are a bit…