The purpose of a streak plate is to produce colonies of a certain organism. These colonies are formed by encouraging the growth of only one organism, which allows the separation of that organism from a sample containing multiple organisms.Know More
A streak plate is prepared with nutrients that are specifically chosen to support the growth of the desired organism. It may also contain chemicals that are toxic to other organisms. These chemicals will kill any organisms that might contaminate the organism you want to study. This combination should result in a plate of isolated colonies of a desired organism.
As well as isolating chosen organisms, streak plates may also be used to support more investigative study of a particular organism. The nutrients in a streak plate can be manipulated to study their effects on the organism, and by setting up different combinations, the effects of changes to the organism's environment can be tested.
A streak plate can also be used to study an organism's normal morphology and lifecycle. In this case, a streak plate can provide an organism with the ideal ratio and amount of nutrients for optimum reproduction and keep any toxic chemicals from reaching the colony. This permits the study of the organism without contamination or interference from any outside factors.Learn more about Biology
The purpose of mitosis is cell reproduction, regeneration and growth. Mitosis is cell division that occurs in the nucleus of a cell. The result of mitosis is the formation of two cells, called daughter cells, that are genetically identical to the original cell.Full Answer >
The purpose of inoculating an agar slant tube is for the long-term maintenance of an isolated culture of microorganisms. Agar is a complex carbohydrate from algae that is infused with water and nutrients so that bacteria and other organisms can grow on its surface.Full Answer >
Heat fixation is a technique used in organism staining that is able to kill organisms, adhere them to the slides being used, and alter them so they can take on the stains being used. Fixing is a necessary step when performing a stain on a slide, explains Ohio State professor Stephen Abedon. Heat fixation is the most commonly used type of fixing for staining and studying organisms.Full Answer >
A Punnett square is used to make predictions about the likelihood of certain traits occurring in offspring based on the genetics of the parents. This mathematical tool was invented by English geneticist Reginald Punnett in the early 20th century.Full Answer >