Typhoid is also called enteric fever and is a bacterial disease spread through contaminated water, food or close contact. Causes of typhoid Typhoid is a life threatening disease and it is caused by salmonella paratyphi, a bacterium that causes less severs illness. Typhoid is spread through drinking the bacterium in contaminated food and water. … Read more
General Principles and Processes of Isolation of Elements: Copper Extraction Copper is a reddish orange bright metallic substance that is an excellent conductor of heat and electricity. It can be drawn into pipes and it is resistant to corrosion. The most common found copper ore in nature is chalcopyrite which is a mixed ore of … Read more
Introduction. Pollination is the transfer of pollen grains from the anthers, the male part of the flower to the stigma, the female part of a flower. The goal of any living thing is to produce offspring; hence, flowering plants use this process to produce. This process enables the plant to produce seeds containing genetic information … Read more
With the passage of time, more information was discovered about the natural selection, and its types. By the discovery of genetics, by the Mendel, the mechanism of natural selection became clearer, and now in the scientific community, it is accepted as the fact. Natural selection can occur in many forms. Some types of natural selection … Read more
Turner syndrome has been seen as a female infection and is a rare genetic disorder that’s found only in girls. It can cause impediments ranging from short height to heart defects. Times, the symptoms are so mild that women don’t get a diagnosis until they are teens or young adults. This condition can cause symptoms … Read more
General Principles and Processes of Isolation of Elements: Aluminium Extraction Al is the most abundant metal in the Earth’s crust. It is a very important metal to be extracted from earth crust because: It is malleable It conducts heat and electricity Has lower density than iron yet stronger than steel Resistant to corrosion due to … Read more
Looking at transgenic animals, these are animals that have had their DNA manipulated to express an additional gene. Although more than ninety percent of transgenic animals are mice; also there exist transgenic rats, sheep, rabbits, pigs, cow, etc. There need for generating these animals as a result of their benefits. Transgenic animals allow the study … Read more
Introduction Transcription and translation are processes involved in central dogma in cell division of living organisms while genetic code is how DNA and RNA molecules carry genetic information in living organisms on Earth. Definitions. The above terms of genetics are defined as follows: Translation– this is the process through which messenger RNA is decoded and … Read more
Tissue culture is the process of using small pieces of plant tissue that are cultured in a nutrient medium under sterile conditions. By using the appropriate growing conditions for each explant type, plants can be induced to rapidly produce new shoots, and with the addition of suitable hormones fresh roots. These plantlets may also … Read more
Introduction Genetic materials contribute to the fundamental role in the composition of living things. Deoxyribonucleic acid (DNA) is found in the nucleus of every cell and is precisely the same in each of them. The other genetic material that is found in cells and viruses is called ribonucleic acid (RNA). DNA is the hereditary … Read more