Genetic diversity

Research Paper: Osteogenesis Imperfecta What is Osteogenesis Imperfecta? Osteogenesis Imperfecta is a genetic brittle bone disorder. The disorder is characterized by bones that easily break, due to little or no apparent cause. A classification system of several different types of Osteogenesis Imperfecta is used to diagnose just how severely a person with Osteogenesis Imperfecta is affected. The severity of Osteogenesis Imperfecta varies from case to case, even among cases of the same type of OI…

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…

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…

Summary: ״The CRISPR Conundrum״ “The CRISPR Conundrum” (2016) by Mary Bates, describes “CRISPR”- clustered regularly interspaced short palindromic repeats, which is a new revolutionary technology in genetic engineering. 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,…

called a genetic risk factor. The protein Apolipoprotein E-4 is considered to be a genetic risk factor. Everyone inherits a copy of some form of APOE from each parent. Those who inherit APOE-e4 from one parent have an increased risk of Alzheimer’s. Those who inherit APOE-e4 from both parents have an even higher risk, but it’s not a certainty that they will develop the disease. It is important to point out that’s the reason why APOE- 4 is considered a genetic risk-factor. APOE-4 is a genetic…

Natural selection seems to occur in all species, and heritable traits including genetic traits and cultural traits are key in this long-term evolution. Generic traits are physically transmitted to offspring. For example, fish’s eyes are different from humans’ in order to fit underwater environment. Cultural traits could be knowledge…

This experiment is a hypothetical representation, modelling the effects of colour mutations in “prey” and vision mutations in “predators”, and their role in natural selection. This means that different materials in this experiment represent real-life organisms and environments. The sand-coloured background represents a sand environment, while the green background represents a grass environment. The individual conducting the experiment is acting as the “predator” (bird) and the tweezers used by…

The four forces of evolution include mutation, gene flow, genetic drift, and natural selection. Mutation occurs when the base pairs in DNA change which leads to different codons being read during translation. Most mutations create codons for the same amino acid that the normal codon would have made but sometimes a different amino acid is made and that leads to changes in the organism's phenotype. Gene flow happens when two different populations come together and reproduce with each other. The…

It has been proven that yeast can grow on both YPD and SD plates. In this lab we cross several yeast strains through the process called replica plating. For this identification test only one dominant allele is required. One copy of each gene is essential to produce enough of each enzyme needed in order to make a histidine. Through the study of Saccharomyces cerevisiae we prove that by transferring yeast cells onto YPD and SD plates over a period of 24-72 hours in a thirty degrees Celsius…