They provide information on shared ancestry and evolutionary relationships.
Answer:
Test Tube 2 (<em>S. sonnei)</em>
Explanation:
Triple sugar iron agar test is the microbiological assay used to test the fermentation reaction performed by the bacteria. The fermentation process differs based on substrate and the acids formed as a byproduct.
The test is based on the byproduct formed as a result of fermentation. The test tube contains 1% lactose, 1% sucrose and 0.1 % glucose, ferrous sulphate, phenol red pH indicator.
When the bacteria ferment any of the three sugar, the medium turns yellow.
In test tube 1- The tube shows pink slant, pink butt and no black precipitate which indicates that no fermentation took.
In test tube 2- the tube shows pink slant, yellow butt and no black precipitate due to fermentation of Glucose only due to alkali acid reaction.
In test tube 3- the tube shows yellow slant and yellow butt which shows that glucose and either lactose or sucrose has been fermented.
Thus, test tube 2<em> (S. sonnei</em>) is the correct answer.
Multidrug-resistant organisms are bacteria that have become
impervious to certain antibiotics. Individuals with an active infection from a
multidrug-resistant organism require physical isolation, barriers, personal protective
equipment as contamination precaution (standard/ transmission-based) . They may
also require increased durations of hospitalization and use of more expensive
antimicrobial agents.
Synovial fluid is used primarily to reduce frictions effects and the wear and tear on joints. As joint activity increasing the viscosity must "Increase" in order to maintain the joint during strenuous movement. <span />
