1. In a Quelling reaction test, the antibodies added to the sputum sample are reacting to...

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Biology

1. In a Quelling reaction test, the antibodies added to thesputum sample are reacting to what morphological feature on thebacterium which causes the bacterium to swell - a positive testresult.
outer membrane
flagellum
capsule
cell wall
2. When the Western Blot is used to test for Lyme Disease whatthe procedure is testing for specifically in the individual is thepresence of
Â Â fragments of the bacterial outer membrane
the bacterium
specific DNA sequences from the bacterium
antibodies against the bacterium
3. Restriction enzymes, used in DNA fingerprinting, search forand cut pieces of ds DNA that are palindromes. Which below is apalindrome? (In the answers the top strand is listed first followedby it's complement)
CCCCCC GGGGGG
AAATTG TTTAAC
GAATTC CTTAAG
GTAAGC CATTCG

Answer & Explanation Solved by verified expert

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Ans 1 Correct option capsule Explanation This technique is used to detect the presence of Streptococcus pneumoniae which causes various diseases like pneumonia meningitis etc When the antibodies bind with the polysaccharides present on the capsule of the bacteria the refractive index of the capsule is changed Hence capsule appears swollen when observed under the microscope The See Answer

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