Adenine

sugar components are constant in all persons and, therefore, biologists today utilize the nitrogenous base component since it helps in distinguishing different individuals. Indeed, this base is responsible for nucleotides that contain; cytonise, adenine, guanine or even thymine whose combination determines the exact coding capacity and function of the DNA as applied in forensic science. Today, DNA in forensic science is…

Nucleus In each cell, there is one nucleus. It is in the center of the cell, and takes up about ten percent of the cell’s volume. It is a large, oval-shaped structure bound by a double membrane called the nuclear envelope. Inside the nucleus, are organelles called nucleoli, which assemble RNA and synthesize ribosomal subunits. Throughout the inside of the nucleus, is a substance called the nucleoplasm, which suspends the nucleus’ structures. The nucleus controls the activities of the cell to…

Lesson 5: Structures, Functions and Roles of Biological Molecules and Enzyme Activity in Metabolism Biological Molecules/Macromolecules Plants produce their own food through photosynthesis. They manufacture mainly carbohydrates (glucose) as a source of food of many higher organisms in the food chain. It is one of the many biological molecules present in plants and needed by animals. Biological molecules are macromolecules composed of many monomers (polymer) connected through a covalent bond…

With the advancements made in technology daily and new scientific studies and explorations, the science community is always on the brink of something big. And the next big thing might be designer babies. Deeper and more profound exploration into cells and genetics have allowed for the possibility of designer babies to emerge. Before creating designer babies was even an idea, scientists were first working towards sequencing the human genome. By sequencing the human genome, scientists will be able…

their cells. Most DNA is at the nucleus of a cell. Mitochondria are a part of a cell (“What is DNA?”). DNA is also found in mitochondria. The DNA inside of mitochondria is called mitochondrial DNA or mtDNA (“What is DNA?”) . Information in DNA is: adenine (A), guanine (G), cytosine (C), and thymine (T). These are known as bases. Human DNA has three billion bases. The sequence of the bases is how proteins know what to make (“What is DNA?”).…

Gene Therapy & Cancer Cells Gene therapy is often defined as a treatment that uses genes to cure or prevent diseases. Genes, DNA, and protein are all involved with each other, therefore, in many immune diseases, if one fails your whole immune system could eventually fail. This treatment is relatively new; hence it is still a pretty risky experimentation since it involves getting genes into cancer cells. Gene Therapy is often involved in serious cancer cell treatments; its main purpose is to try…

The book I read for my Biology book report was, The Double Helix, A Personal Account of the Discovery of the Structure of DNA an autobiography written by James D. Watson. It was released in 1968 and was published by Atheneum Press (US), Weidenfeld & Nicolson (UK) and is 226 pages. As the title suggests, the book is Dr. Watson’s personal account of the groundbreaking discovery of the structure of DNA. Biologists already knew that genes were the material responsible for traits getting passed from…

Introduction: Cancer is defined by abnormal cell division without control. Colorectal cancer may be develop in the tissues of the colon and/or the tissues of the rectum (PubMed Health, 2015). Colon and rectal cancers arise because of changes that occur in specific genes and it has been notices that these genes play an important role to the cell cycle, angiogenesis and other mechanisms that take part in the growth of cells (Swan, 2005). Colorectal cancer is the third most common cancer worldwide…

Ways to discover biological immortality and slowing down ageing process Ageing is simply the matter of our bodies physically getting old and it has environmental and genetic causes. As we get older we tend to develop and maintain some habits which can affect our health either positively or negatively and this represents the accumulation of changes in a person over time. Biological immortality is a term used by biologists to distinguish cells that are not subject to the Hayflick limit. There are…

Cellular respiration is a process that takes place in the mitochondria where a chain of metabolic reactions occur in order to generate chemical energy from nutrients such as carbohydrates. The key reactants of this process include oxygen and glucose which yield carbon dioxide and water. Photosynthesis is the process where light energy is converted into chemical energy. The key reactants in photosynthesis are water, light and carbon dioxide which yield glucose and oxygen. In this lab, several…