Allele frequency

Sickle Cell Disease Throughout the world, approximately 300 million individuals are heterozygous for a mutation in the β-globin gene, meaning they carry the sickle cell trait (Key, Connes, & Derebail, 2015). Of those 300 million individuals, 100,000 Americans are affected by sickle cell disease, making it the most common inherited blood disorder. Every single cell in our body needs oxygen to function efficiently, and the role of hemoglobin in red blood cells is to transport oxygen from the lungs…

Looking back at human existence, it is easy to let your mind wander off in awe of all of the possibilities that evolution entails. In fact, no one was more curious about evolution than Charles Darwin. His theory explaining evolution of diverse living organisms and the links that he found between each one is truly astonishing and has had an impact on other scientific researchers and their studies for years. Anyone who is interested in natural sciences would know how intriguing biological change…

The Evolving Planet exhibit at the Field Museum of Natural History is a work of art that thoroughly explains the story of life through evolution. The exhibit begins by informing us about organic compounds coming to be on earth and how all living organisms require organic compounds. It moves on to explain single cell organisms developing from organic compounds and then becoming self-sufficient using energy from the sun. These single-cell organisms grew into more complex beings with genetic…

Race in Human Variation The Concept of Race In the eighteenth century, the concept of race depended on several ideas about the environmental influences, culture and human nature. Some researchers believed that the concept of race does not illustrate human diversity. They argue that the focus was more on culture as influenced by environment. Social scientists perceived race as a way of classifying people on the basis of many kinds of differences such as gender, cultural behavior, origin and…

Pediatric cancer is among the leading causes of death for children today. According to the Center for Disease Control and Prevention (CDC), "the most prevalent cancers seen in childhood are leukemia’s and brain and central nervous system cancer. Within the United States, these cancers account for the highest incidence and death rates among children today" (2014). Research shows genetic factors play a significant role in causing a variety of pediatric cancers. This paper will provide research and…

of the species close to extinction. But how are they helping the species when they are just lowering the species chance at survival and reproduction? Well, they aren’t because inbreeding also increases the frequency of the deleterious homozygous genotype, and selection against deleterious allele (genes whose effects on the phenotype are likely to result in a reduced fitness) (Boakes). For example, a population of 40 adders (Vipera berus) experienced inbreeding depression when farming activities…

Introduction Deoxyribonucleic Acid, or DNA is defined as the hereditary material in humans and almost all other organisms” (Genetics Home Reference). Breaking this definition down is simply the genetic material passed down from generation to generation, and everyone has it. There is technology that analyzes DNA that can identify an individual just from skin flakes or hair follicles. This makes identifying an individual simple. This makes identifying a criminal offender simple. DNA…

Ultra-violet light is produced by high-energy wave frequencies just outside of the visible spectrum. This light energy can interfere with the bonds which comprise the backbone of DNA by exciting the electrons in these atoms—leading to conformational changes which cause base-pair bonds to be broken, shifted, or replaced, causing genetic mutations, or abnormalities in the typical phenotypic expression of an organism. The purpose of this lab was to understand more about ultraviolet light as an…

previous six types of Osteogenesis Imperfecta, Type VII is recessively inherited and the CRTAP gene is affected. In order to be recessively inherited both parents must be carriers of the gene and the affected individual acquires two copies of the mutated allele. In this case, mutation of the CRTAP gene affects the maturation process of collagen (Fast Facts- Osteogenesis Imperfecta Foundation,…

The intervention strategies the clinician will use to target Amanda’s specific language weakness are narratives and discourse. The client’s teacher main concerns were the areas of expressive language skills as well as limited vocabulary. The clinician will target narratives and discourse to increase the client’s expressive language skills. Research by McCabe and Bliss, supports that children should have the ability to provide with a minimum of two events in a narrative. The clinician can…