Nucleus accumbens

Primary characteristics, genetic and biological, of sarcomas can be seen below. I have divided them into the major categories that affect the most common sarcomas. Oncogenes: Oncogene mutations in sarcomas have not been researched as much as in carcinomas.1 It has been shown that there is not a common oncogene that is activated between the various sarcomas.2 Even though there is not a significantly common oncogene(s) which is activated there are a couple oncogenes that have been activated and identified

In order to better understand genetics, and what makes us who we are, it is important to first understand cell division/reproduction. Mitosis is the division of the nucleus that produces two daughter cells identical to themselves and to the original cell. Cytokinesis, which is the division of the cytoplasm, follows this process. The process of mitosis has five stages that are proceeded by interphase, which is a period for cell growth and development. Mitosis begins with prophase, which is when

Introduction/Background: Transcription in eukaryotes is one of the most vital processes of life that involves a highly controlled and regulated systematic series of events that is mediated through various key factors. The process of transcription occurs when the genetic information stored within DNA becomes activated through the synthesis of complementary mRNA and is thus regulated by RNA polymerases. There are three types of RNA polymerases that distinctively transcribe a specified set of genes

organisms. Indeed, deoxyribonucleic acid (DNA) is a macromolecule that has the power of carrying the genetic information for all the proteins that make up an organism and controls their quantity of production. It is known to be located inside the nucleus in all eukaryotic cells, but lies in the cytoplasm in prokaryotic cells (1, 3). In 1953, Watson and Crick came up with a model to describe the structure of DNA as a double-helix containing two chains that have opposite endings labeled 5’ and 3’, and

The significant difference between the eukaryotes and the prokaryotes, after size, is the fact that eukaryotes have a nucleus. All the genetic material is found in the nucleus of the more complex structure that is of a eukaryotic cell. This is often referred to as the “true” nucleus, which is bound by a double-membrane. Eukaryotic cells tend to be in compartments, as they tend to be larger and more complex, so their functions take place in specific parts of the cell. These compartments are made up

and produces two identical daughter cells during prophase,metaphase,anaphase,telophase,and cytokinesis. Which a cell duplicates into two genetically alike daughter cells. In mitosis, chromosomes in the cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. Interphase is included in mitosis discussions,but it is not technically part of mitosis but rather ecompasses stages G1,S,and G2 of the cell cycle. The process of mitosis is slow and simple. In stage G1

Introduction The mammalian Jagged 1 is a transmembrane ligand that is encoded by the JAG1 gene, and is a member of the Notch family of ligands that activate the mammalian Notch (mNotch) signalling pathway. Since the discovery of JAG1 in 1995, it has contributed to advancing knowledge in the field of developmental biology, specifically by uncovering the pathways involved in organogenesis and cell fate (Lindsell et al., 1995). The Notch pathway regulates specification of many cell types, and is critical

The Endomembrane System Endomembrane System- is a system of membrane based organelles within the eukaryotic cell that are either in direct contact with each other or communicate through the use of vesicles. A primary role this system plays in intracellular processes is treatment and transport of proteins. The membranes and organelles include the nuclear envelope, the endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles, and peroxisomes. Components/Process of the Endomembrane System

Summary The author of this article wanted to investigate if Galectin-3 is involved in the development of skin lesion with a patient with systemic lupus erythematosus or SLE. Patients with SLE, dermatomyositis, systemic scleroderma and healthy person were studied. Galectin-3 in these group of people were examined using ELISA and immunohistochemical staining. Results shows that galectin-3 serum level is low in epidermis in skin lesion from a patient with SLE, dermatomyositis and systemic scleroderma

The focus of this research project is on how cyclin-B1 levels suppress the mitotic cell cycle within hibernating frog plasma. Previous research using THP-1 cancer cells in active and hibernating frogs showed cell division stops between G2/M phase of hibernating frogs, but mitosis continued in the non-hibernating frogs. This created a question of what cyclin was responsible for preventing the THP-1 cells from entering mitosis. Through literature research, we were able to devise a possible answer to