Question

describe each summery of direct isolation, enriched isolation, spot test and plague assay. ( explain each in 100 word)​

Answer 1

Answer:

Explanation:

ENRICHED ISOLATION

In this course, the selective enrichment/isolation concept applies not only to the isolation of the organisms indicated in the above-named experiments but wherever we are isolating a certain type of organism from a natural source. This includes gram-negative bacteria from hamburger

DIRECT ISOLATION

Direct isolation techniques. Direct transfer. The term "direct is applied to techniques involving the simple transfer of mould from its natural habitat to a pure culture situation in the laboratory. The direct transfer technique is also used to obtain pure cultures of mushrooms and other large fungi. The fruiting body is broken open, without touching the newly exposed flesh, and some of the tissue is transferred to a sterile culture medium. If this has been done carefully, the tissue may give rise to a colony after a few days

SPOT TEST

Spot tests are simple chemical procedures which uniquely identify a substance. They can be done on small samples, even microscopic samples of matter with no preliminary separation. In a typical spot test, a drop of chemical reagent is added to a drop of an UNKNOWN mixture.Spot tests (spot analysis) are simple chemical procedures that uniquely identify a substance. They can be performed on small samples, even microscopic samples of matter with no preliminary separation.

PLAGUE

Plague is an infectious disease caused by Yersinia pestis bacteria, usually found in small mammals and their fleas. The disease is transmitted between animals via their fleas and, as it is a zoonotic bacterium, it can also transmit from animals to humans.A rare but serious bacterial infection that's transmitted by fleas. The bubonic plague is caused by the bacteria Yersinia pestis. It can spread through contact with infected fleas.