Informing America, One Click at a Time
Amwoga Khalwale
What Is DNA? DNA (Deoxyribonucleic acid) is a molecule composed of two chains that coil around each other to form a double helix carrying the genetic instructions used in the growth, development, functioning and reproduction of all known organisms and many viruses. The two DNA strands are also known as polynucleotides because they are composed … Read more
A non-communicable disease (NDC) is a disease that is not transmissible directly from one person to another. The diseases are of long duration and generally slow progression. They include Parkinson’s disease, autoimmune diseases, strokes, most heart diseases, most cancers, diabetes, chronic kidney disease, osteoarthritis, osteoporosis, Azheimer’s disease, cataracts and many more others. A communicable disease … Read more
For any machinist, one among many of the basic concepts to understand in any milling process is the cut direction. Milling cutters can cut in two directions, conventional (sometimes known as up milling) or climb (sometimes known as down milling). In conventional milling, milling cutter rotates against the direction of feed of workpiece, the chip … Read more
Cerebrum Cerebrum is the principal and most anterior part of the brain in vertebrates, located in the front area of the skull and consisting of two hemispheres, (left and right) separated by a fissure. It is responsible for the integration of complex sensory and neural functions and the initiation and coordination of voluntary activity in … Read more
The Bullmastiff is a large-size breed of domestic dog, with a solid build and a short muzzle. This breed was originally developed by 19th century gamekeepers to guard estates. The bullmastiff has a short coat that lies flat on his body. Coat colors include fawn, brindle and it may have black markings on the head. … Read more
What Are Bryophytes? Bryophytes are a group of plant species that reproduce via spores rather than flowers or seeds. Most of bryophytes are found in damp environments and lack specialized water-conducting tissues. Examples of bryophytes include: liverworts, the mosses and hornworts. Many bryophytes usually have the following characteristics: The sporophytes of bryophytes are unbranched, producing … Read more
Sprite Sprite is a colorless, caffeine-free, lemon and lime-flavored soft drink created by Coca-Cola Company. It was first developed in 1959 as “clear Lemon Fanta’’ and was introduced in the United States under the current brand name sprite in 1961 as a competitor to 7 UP. Since 1959 sprite has been reformulated several times to … Read more
Endoplasmic Reticulum (ER) Cells have many organelles that work together to help them complete their life functions. One of those organelles is the endoplasmic reticulum, which is an interconnected network of membranes used to make proteins, steroids, and lipids located near the nucleus. The Endoplasmic reticulum creates, packages and secretes many of the products created by … Read more
Replication DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information or DNA as the parent … Read more
What Is Active Transport? Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration against the concentration gradient. Active transport uses cellular energy to move molecules against a concentration gradient. There are two types of active transport: Primary and Secondary active … Read more