Chromosomal Behavior in Meiosis and Fertilization

Chromosomal Behavior in Meiosis and Fertilization/Chromosome behaviour at meiosis. Meiosis consists of two rounds of chromosome segregation following a single replication. At the onset of replication, the sister chromatids are held together by cohesion (purple rings). Homologous chromosomes pair during prophase I and engage in recombination: at least one CO per pair of homologues is Read More >>>>

Genetic Variation – Types, and All About I Have To Know

Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.[rx] Mutations are the ultimate sources of genetic variation, but other mechanisms such as sexual reproduction and genetic drift contribute to it as well.[rx] Advantages and Disadvantages of Sexual Reproduction The genetic diversity of sexual reproduction, observed in most eukaryotes, is thought Read More >>>>

Inherited Variation – All About I have To Know

Inherited Variation in a characteristic that is a result of genetic information from the parents is called inherited variation . This is because they get half of their DNA and inherited features from each parent. Each egg cell and each sperm cell contains half of the genetic information needed for an individual. Genetic variation is the Read More >>>>

Phenotype – Types, All About I Have To Know

Phenotype is the set of observable characteristics or traits of an organism. The term covers the organism’s morphology or physical form and structure, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior. An organism’s phenotype results from two basic factors: the expression of an organism’s genetic code, or its genotype, and the influence of environmental factors. Both factors may interact, Read More >>>>

Genotype – Types, All About I Have To Know

A genotype is an individual’s collection of genes. The term also can refer to the two alleles inherited for a particular gene. The genotype is expressed when the information encoded in the genes’ DNA is used to make protein and RNA molecules. The expression of the genotype contributes to the individual’s observable traits, called the Read More >>>>

Trophoblast Development – Anatomy, Mechanism

Trophoblast Development/Week 2 is often referred to as the week of twos. It’s the week when the embryoblast, extraembryonic mesoderm and trophoblast each separate into two distinct . Trophoblast Development Trophoblasts are the outer layer of cells that provide nutrients to the embryo and form part of the placenta. Key Points The trophoblast is subdivided into two layers, the inner cytotrophoblast, Read More >>>>

Blood Gas Analysis – Symptoms, Diagnosis, Treatment

Blood gas analysis is a commonly used diagnostic tool to evaluate the partial pressures of gas in blood and acid-base content. Understanding and use of blood gas analysis enable providers to interpret respiratory, circulatory, and metabolic disorders. [rx] A “blood gas analysis” can be performed on blood obtained from anywhere in the circulatory system (artery, vein, Read More >>>>

Respiratory Acidosis – Causes, Symptoms, Treatment

Respiratory acidosis typically occurs due to failure of ventilation and accumulation of carbon dioxide. The primary disturbance is an elevated arterial partial pressure of carbon dioxide (pCO2) and a decreased ratio of arterial bicarbonate to arterial pCO2, which results in a decrease in the pH of the blood. This activity reviews the presentation, evaluation, and Read More >>>>

Electrolyte Balance – Anatomy, Mechanism, Functions

Electrolyte balance is one of the key issues in maintaining homeostasis in the body, and it also plays important roles in protecting cellular function, tissue perfusion, and acid-base balance. Fluid and electrolyte balance must also be maintained for the management of many clinical conditions. Electrolyte imbalances are common findings in many diseases.[rx,rx] Imbalances in every Read More >>>>

Electrolyte Balance – Pathophysiology, Mechanism, Importance

Electrolyte Balance/Fluid and electrolyte balance is one of the key issues in maintaining homeostasis in the body, and it also plays important roles in protecting cellular function, tissue perfusion, and acid-base balance. Fluid and electrolyte balance must also be maintained for the management of many clinical conditions. Electrolyte imbalances are common findings in many diseases.[rx,rx] Read More >>>>

Body Fluids – Physiology, Mechanism, Functions

Body fluids, bodily fluids, or biofluids are liquids within the human body. In lean healthy adult men, the total body water is about 60% (60–67%) of the total body weight; it is usually slightly lower in women (52-55%).[rx][rx] The exact percentage of fluid relative to body weight is inversely proportional to the percentage of body fat. A lean 70 kg (160 pound) man, for example, Read More >>>>

Competition Pools – All About You Need To Know

Competition Pools/A swimming pool, swimming bath, wading pool, paddling pool, or simply pool is a structure designed to hold water to enable swimming or other leisure activities. Pools can be built into the ground (in-ground pools) or built above ground (as a freestanding construction or as part of a building or other larger structure), and maybe found as a feature aboard Read More >>>>