Gene duplication

made, then you turn off the enzymes that are involved in tryptophan synthesis by binding and causing a change in shape of the enzyme (negative feedback). In addition, repressors are proteins that bind to the operator and prevents expression of the gene. However, the repressor is unable to bind to the operator unless tryptophan is present, in which case the tryptophan is a corepressor which is a small molecule that binds to the repressor. When there is a lot of tryptophan, it will bind to the…

1. One of the first questions that I have for Mariah is if she remembers her mother and stepfather and how did this affect you when you were growing up. Although the case study talks about the father being abusive I would want to know about the mother and their relationship. Then I would ask a follow up question and ask Mariah if she tried looking for her parents and what would she get out of it if she tried to look for her parents. Another question I would have for Mariah is if she could tell…

The Spotted Wing Drosophila fly (SWD) is a quickly spreading across the United States of America. As SWD numbers get larger the number of fruit crops gets smaller. Aijun Zhang, a chemist working with the Agriculture Research Service, Invasive Insect Biocontrol, and the Behavior Laboratory in Beltsville Maryland, has found a solution to the SWD problem, Methyl benzoate. Methyl benzoate is emitted by snapdragons and petunias, to attract bees. SWD, unlike bees, is repelled from Methyl benzoate,…

Our group was assigned fruit flies with the mutated traits of shadow body and stubby wings. These traits were easily identifiable. A shadowed body was gray instead of the wild-type color of light brown, and stubby wings were nearly absent from the organism when they should be prominent. In this experiment, we attempted to determine the mode of inheritance for these two traits. After the parents mated, we viewed their F1 offspring. We noticed this generation didn’t contain either of the…

phylogenetics to identify genes within the mitochondria of specimen from extinct Hidalgo bird species and shrew species that showed similarity, and therefore relate them to common ancestry1.…

- Genetic testing is a medical assessment that detects any changes occurring in your genes, proteins or chromosomes. ("What Is Genetic Testing? - Genetics Home Reference." U.S. National Library of Medicine. National Institutes of Health, n.d. Web. 29 Nov. 2016.) - It is used to rule out any genetic condition as well as it can be used to determine a person’s chance of developing a genetic disorder. ("What Is Genetic Testing? - Genetics Home Reference." U.S. National Library of Medicine. National…

James Watson, Francis Crick, Rosalind Franklin and Maurice Wilkins all played a pivotal role in determining the structure of the DNA molecule. The orderly and methodical work at King’s college, London by Rosalind Franklin and Maurice Wilkins provided a more experimental approach, working closely with X-ray diffraction images of DNA, this was juxtaposed to Watson and Cricks who at their Cambridge lab approached research by building physical models, narrowing down possibilities and producing ever…

Everyday millions of people are born with mutations, harmful diseases, as well as being in a tragic event like fire, frost bite, or other events losing skin or body parts. Today we have progressed further and further into science. Scientist have discovered a new method called Tissue Engineering. By using cells to create a new tissue or even a working organ, they then are able to be put back inside the hosts body like nothing ever happened for people all over the world. This method is being used…

There are many careers or occupations that require the knowledge and use of genetics. Among these are virologists and pharmacologists. A virologist is a person who studies virology, which is “the study of virus and virus-like agents, including (but not limited to) their taxonomy, disease-producing properties, cultivation and genetics” (Mestrovic, 2015, para. 1). I could say that a day in the life of a virologist would start in his/her office, which is the laboratory, where he/she would perform…

Altering the genes of a human adult is a procedure that is already taking place in America today. However, altering the genes of embryos is similar to altering adult genes, but involve different steps of eliminating unwanted genes. The main aspect of altering embryos is that there has to be a large amount of them to work with. For example, in order to properly alter the genes of an embryo, scientist created 58 embryos from the sperm of a male with the mutation and combined them a female donor…