A dihybrid crossing is a gene-cross between people who have homozygous or heterozygous genotypes that have two distinct characteristics or traits. Dihybrid crosses differ from the monohybrid crossing that only involves one genetic character or characteristic.
What are Microscopes? Parts of a Microscope Advertisements The microscope parts are divided into two main categories, such as; Structural parts of a microscope and their functions Structural parts of a microscope Location Function Head (Body Tube) Situated at the microscope’s apex. Serves as a pivotal connector, linking the eyepiece to the objective lenses, ensuring … Read more
Advertisements Primary consumers are fundamental components of ecological food chains, holding a critical position as the link between producers and higher trophic levels. In essence, they are organisms that feed directly on primary producers, typically plants or algae, which are capable of photosynthesis. Occupying the second trophic level, primary consumers are mostly herbivores, although some … Read more
Advertisements A microscope condenser is an integral optical component in the realm of microscopy, designed to focus and direct light onto the specimen being examined. This specialized lens system is strategically positioned beneath the microscope stage, a placement crucial for optimal illumination. The primary function of the condenser is to gather light from the microscope’s … Read more
What is Objective Lens? Purpose of Objective Lenses Advertisements Objective lenses serve several key purposes in optical instruments, playing a critical role in magnification, image formation, and resolution. The primary purposes of objective lenses include: Specification of Objective Lens The specification of an objective lens encompasses several key parameters that define its performance and suitability … Read more
What is Folin-Wu Method? Principle of Folin-Wu Method Requirements Procedure of Folin-Wu Method Advertisements Step 1: Preparation of Protein-Free Filtrate Step 2: Testing Procedure This process results in a color change proportional to the glucose concentration in the blood sample. By comparing the absorbance of the test sample against the standard, the glucose level in … Read more
Advertisements Glucose, a key sugar molecule, plays a vital role in the human body as the primary carbohydrate found in the bloodstream. Its importance lies in its function as the main source of energy for various body tissues, notably the brain. When glucose is metabolized, it undergoes a sequence of chemical processes that result in … Read more
Advertisements Hemoglobin, often abbreviated as Hb, is a vital protein found in red blood cells (RBCs). Its primary role in the human body includes the transport of oxygen from the lungs to various tissues and the transfer of carbon dioxide from tissues back to the lungs. Additionally, hemoglobin plays a significant role in maintaining the … Read more
Myeloperoxidase is a lysosomal enzyme that can be found in the azurophil granules of neutrophils and monocytes.
Advertisements Biodiversity is a term that might sound complicated, but it’s actually a simple and really important idea. Imagine you’re walking through a forest. You see different types of trees, hear various birds singing, and spot all sorts of insects and animals. All these different forms of life, including the plants, animals, and microorganisms, as … Read more
Advertisements UV Spectroscopy is a scientific method that’s like a detective tool for scientists. It helps them understand what’s happening in a molecule when it interacts with light, specifically ultraviolet light. This type of light is invisible to our eyes but plays a crucial role in the world of molecules. Imagine a molecule as a … Read more
What is Mantoux Test? Principle of Mantoux Test Advertisements The Mantoux test operates on the principle of delayed-type hypersensitivity, specifically Type IV hypersensitivity. This test is designed to assess a person’s cell-mediated immunity against the bacterium Mycobacterium tuberculosis. To conduct this test, a substance known as Purified Protein Derivative (PPD) is used, which is essentially … Read more
UV spectroscopy, also known as UV-visible spectrum (UV-Vis also known as UV/Vis). UV-Vis spectroscopy is a technique used to measure the absorption of ultraviolet (UV) and visible light by a sample.
What is Diaphragm of a Microscope? History of Diaphragm Definition of Diaphragm of a Microscope Advertisements The diaphragm of a microscope is a component that controls the amount of light that passes through the specimen being observed. It is typically located between the light source and the stage, and consists of a series of adjustable … Read more
What is Chargaff’s Rules? Definition of Chargaff’s Rules Advertisements Chargaff’s Rules are two fundamental principles discovered by biochemist Erwin Chargaff, which dictate the base pairing in DNA. The first rule states that in DNA, the amount of adenine (A) is equal to thymine (T), and the amount of cytosine (C) is equal to guanine (G). … Read more
DNA is the full genetic information that determines the nature and function that an animal has. Proteins are made by the genetic code contained in DNA. Conversion of DNA encoded data to RNA is necessary to make proteins. So, in the majority of cells, genetic information is transferred from – DNA to RNA, and then to protein. The transfer of information is controlled by three different processes that help in the transfer of genetic information as well as its transformation into a different form:
What is Carbon Fixation? Carbon Fixation Definition Advertisements Carbon fixation is a biological process where atmospheric carbon dioxide (CO2) is converted into organic compounds, primarily by plants, algae, and certain bacteria. This process is a key component of photosynthesis, enabling the incorporation of inorganic carbon from the atmosphere into organic molecules like carbohydrates, thereby playing … Read more
What is Receptor tyrosine kinases (RTKs)? Characteristics of Receptor tyrosine kinases (RTKs) Advertisements Receptor tyrosine kinases (RTKs) exhibit distinctive characteristics that define their functional roles in cellular processes and their significance in various physiological and pathological conditions. The following outlines key characteristics of RTKs: Structure of Receptor tyrosine kinases (RTKs) Classes of Receptor tyrosine kinases … Read more
Stokes disc diffusion method isn’t as well-standardized as Kirby-Bauer’s method and is utilized in labs especially where the exact amount of antimicrobial present in discs isn’t known because of the difficulty in getting discs and correctly storing them or when other requirements needed for the Kirby-Bauer method cannot be fulfilled.
Cooked Meat Medium was originally developed by Robertson to cultivate specific anaerobes isolated from wounds.
The current formulation is a modified version, sometimes referred to by the name of Chopped Meat Medium, which allows for the growth of a variety of spores and non-spore-forming strict anaerobes.
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