DNA methylation

The first occurrence of the Lassa virus was in 1969, even though it was unbeknownst to the person who contracted it at the time. While in a village named Lassa that was located in Nigeria, missionary Laura Wine contracted a mysterious disease after taking care of a patient that was giving childbirth. It wasn’t until samples of the virus were sent to be researched at Yale University that scientists and virologists alike realized that they were looking at an entirely new virus. Unfortunately,…

Albert Zarate Mr. Dwyer English 11 04 January 2017 Genetic Future Geneticists have been growing and reaching important new discoveries in our life, many people value the potential of genetics, and they know that this could help fix any health, genetic and physical problems that appear everyday. The genetic material is delicate, so that if the transfer is not completed it could cause greater and unforeseen consequences, that is the why many people think that the risk of birth defects increase…

The free radical theory hypothesis, initially proposed in the mid-1950s, has developed into a noteworthy aging hypothesis. Free radicals are exceptionally flimsy and receptive particles that can be created by ordinary digestion system, responses to illumination, chain responses with other free radicals, and oxidation of certain natural poisons, for example, ozone, pesticides, and air contaminations. Free radicals and their conjugated mixes are fit for assaulting different atoms since they have…

this website the experiment was about “how acetylcholine receptor protein differed between poison frog’s species that are resistant to epibatidine and some of their close relatives that aren’t”. But to procced with this test scientists put the human’s DNA into frog eggs to see if their resisting to poison would change. Then the researchers select amino acids in the human code with different poison frog to find a “switch” that could make us resistant to epibatidine, which is important in case we…

DNA had been known to the the scientific community since 1869 but was not considered to carry any sort of genetic material. In 1952 there was a buzz in the scientific community about what proteins actually were for. This would lead to the Hershey - Chase Experiment. It would not go on to prove that DNA was what carried our genes, however it would be influential in changing many minds of the scientific community. Others would demonstrate their findings in different experiment years after through…

. The four forces of evolution are mutations, natural selection, genetic drift, and gene flow. Mutations are changes in genes that make us who we are today. Mutations, although they are changes in our genetic code, are most of the time harmless and essential to evolution. Mutations can be either advantageous, deleterious, or neutral depending on what the environment of the living organism is (class lecture, Wednesday). The next force of evolution is natural selection which is the idea that…

It is a kind of molecular scissors that can be programmed to snip specific bits of DNA. The article talks about the advantages of CRISPR, yet it describes CRISPR’s disadvantages as well. On the one hand, CRISPR is a cheap and precise technique to edit the DNA of animals, plants and even humans. this technique is based on the ability of viruses to immunize them self and transfer that part of the DNA to the DNA of other creatures. Using CRISPER can be a solution for many problems in healthcare,…

the oxygen on the 3’ carbon of neighboring nucleotide. The Oxygen and Nitrogen atoms of nucleotide create a polarity on the backbone of nucleotide sequences. An important distinction between DNA and RNA is the nucleotide composition. DNA and RNA both contain purines, Adenine (A) and Guanine (G). However, DNA contains pyrimidines, Cytosine (C) and Thymine (T), whereas RNA only contains pyrimidines Guanine (G) and Uracil (U). They play a central role in metabolism, protein synthesis cell…

research, this may become a reality very soon. One such technology capable of restructuring genetic codes in human embryos is the CRISPR-Cas9 method. This works by using an enzyme found in bacteria to snip out segments of DNA and replace the section with a customized code of DNA (Burke). Using this method, there is no limit to the changes one can make to a human embryo, whether it is enhancing intelligence, speed, strength, height, beauty, etc. A “Designer baby” is the term used to describe…

Natural Selection and Sexual Selection This world is colored by diverse species. Some of them persist but others distinct. It is natural and sexual selections that result in incredible difference. Both are leading to a process of evolution while there still exist differences between two selections. “In mammalian males, sexual selection can have a great effect on behavior and morphology than other forms of natural selection because male reproductive success usually varies much more than female…