DNA sequence

Our lives and the lives of those before us, have been unknowingly (or knowingly) shaped by elements. In The Disappearing Spoon, the author Sam Kean, discusses the wonderful world of the periodic table in depth. Within the first nine chapters of the novel, Kean explains the importance of location on the table, origin and discovery of each element, and its impact on other aspects of human life. Through various tales, the table is pulled apart and analyzed in an ingenious way. To a reader, it is…

prokaryotes have nucleoids—which are regions where their DNA is stored, not membrane bound—plasmids are common, they have no introns and they do not have histones. Eukaryotes have a membrane-bound nucleus where their DNA is stored, plasmids are rare, they have introns (parts of a split gene that correspond to intervening sequence) and they do have histones (collection of small basic proteins of chromatin). Both prokaryotes and eukaryotes have DNA storing chromosomes, however nearly all…

Dimetrodon Response Paper The article “Dimetrodon Is Not a Dinosaur: Using Tree Thinking to Understand the Ancient Relatives of Mammals and their Evolution” by Kenneth D. Angielczyk attempts to demystify the evolutionary history of mammals using evolutionary trees and succeeds in doing so. The author begins with the Dimetrodon as an example to demonstrate the power in using evolutionary trees. It is revealed that the Dimetrodon, a synapsid that closely resembles a dinosaur, is more…

Introduction Hutchinson Gilford Progeria Syndrome (HGPS) is a fatal disease that is characterized by the appearance of rapid aging in children. HGPS is rare, affecting roughly 1 in 8 million live births. HGPS can be identified by early symptoms that include slow development, limited growth, alopecia, localized scleroderma, and a distinct facial structure which includes a small face, shallow jaw, and pinched nose. As the disease progresses, new symptoms arise, such as hearing and vision loss…

ability to form spores that can live many years but remain inactive until its environment is just right for it to activate itself. They are similar to eukaryotes in that they also have ester linked lipids, may photosynthesise using chlorophyll and their DNA are both negatively coiled. Archaebacteria uses ether linked lipids, have membranes that enclose lipids with hydrocarbons and survive extreme conditions for example hot springs or extreme pH (Ladiges, 2010 ). Both eubacteria and…

important aspect of CRISPR is the Cas-9 protein which functions as a nuclease (Doudna, Charpentier, 2015). A nuclease is “an enzyme that catalyzes the hydrolysis of a phosphodiester bond of a nucleic acid,” in other words it can cut DNA (OED). Cas-9 can be used to cut DNA at any site with ease and simplicity, including in humans. This is where the problem with CRISPR begins. It can modify somatic and germ line cells efficiently and quickly. Somatic cells are all the cells in the body except…

of some sort. Fibers can determine where an individual has been based upon the fibers on their beings. Hair and fiber evidence are trace evidence that tied Williams to the murders. If hairs are found at the scene, scientist can test them to find DNA or find a way to point someone to the crime. This pertains to the Wayne Williams case due to the fibers and hairs found on the bodies of the victims. More than one fiber expert has traced these hairs and fibers to Williams home (or) automobile, “ .…

(CBFA2) (10, 11). It is one of three RUNX proteins found in humans, all of which possess a highly conserved 128 amino acid Runt DNA-binding domain at the N-terminus. The Runt domain is important for binding with consensus sequence (PyGPyGGTPy) in DNA and with core binding factor subunit beta (CBF-β) (12). CBF-β heterodimerizes (13) with RUNX1, enhances RUNX1 affinity for the DNA by 10 fold (14) and stabilizes RUNX proteins against proteolytic degradation (15). RUNX proteins contain a nuclear…

Researchers have been able to analyze the Hox genes sequences in modern animal and obtain an estimation that the first Hox gene had risen through gene innovation 600 million years ago. The more simple an organism the less Hox genes/clusters it contains, and the more complex the organisms the more Hox gene clusters…

nominate the brilliant scientist Rosalind Franklin. Her crystallographic work at King’s College, London was a crucial contribution to the double-helix model of DNA discovered by James Watson and Francis Crick (Gregory, 2002). Her contributions to the scientific community are still being quoted today and without the discovery of the structure of DNA, present day scientific projects such as The Genome project would not have been possible (“Rosalind Franklin”, n.d.; Alberts et. al, 2002). However,…