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madam [21]
3 years ago
13

Viral hemagglutination assays only work with certain types of viruses because

Biology
1 answer:
nignag [31]3 years ago
5 0

Answer:

a. the virus must be able to cross-link red blood cells directly.

Explanation:

Viral hemagglutination assay is a method which is used for the quantification of the relative concentration of the viruses.

The principle on which the hemagglutination assay works is as follows:

  1. There are sialic acid receptors present on the surface of the red blood cells which will bind to the haemagglutinin glycoprotein present  on the surface of the viral particle. 
  2. Due to the binding of the sialic acid receptors with haemagglutinin particle there will be cross-linking of the red blood cells by the viral particles and a lattice formation will take place. 
  3. The lattice will remain suspended in the solution however if the concentration of the virus particles will be less, the lattice will settle down in the well. 

Thus, this method allows knowing the relative concentration of the virus. 

<em>Due to its basic principle of cross-linking this method works well for only a few viruses such as influenza virus. </em>

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My answer would also be as yours

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4 0
3 years ago
What is a major benefit of schooling​
meriva

Answer:

Explanation:

Education is seen as the golden ticket to a better life, however this ticket is not being taken by many young individuals at the perfect age to pursue higher education. For various reasons, students have no drive or interest in the benefits of the institutions that surround them.  In the  New York Times article “Bottom Line: How State Budget Cuts Affect Your Education,” Sarah Brown demonstrates how state spending to universities has dropped dramatically nationwide since 2008 and the numbers presented are staggering; some universities are experiencing cuts of more than 50%. The implications of what is happening here are dismal - spending cuts are “forcing many public universities to lay off faculty and staff members, postpone in new facilities and raise tuition fees.” Due to these massive reductions to funding colleges and universities, education is becoming less available to the general public due to increased cost. There seems to be no reasonable stance which successfully argues that education should not be provided to all individuals in a society. There is a plethora of research showing correlation between educational attainment and quality of life; it should be common understanding that education is no longer a privilege, but rather a right and a necessary resource. Students must realize the potential that surrounds them and the benefit that is provided by it.

Spending cuts and subsequent financial burdens are causing our country and its citizens to experience a major issue - many students are having education withheld from them due to the increasing cost of becoming educated. Education is an invaluable tool in liberating the minds of individuals to an elevated state of understanding and potential. It allows one to question and analyze the various going-ons of the world and its inhabitants. Education allows one to approach controversy and to form strongly validated, persuasive views. When a nation’s citizens become educated, they see a general improvement in quality of life and an improvement in their society. Education is of utmost importance in enhancing the lives of the individual and for allowing a society to develop and flourish.

Education is currently greatly privileged, with financial burdens serving to be a limiting force for many potential students. The ultimate tool to really increase the abundance of educational opportunities begins at lowering if not removing entirely, the tuition of college and treating it as a common good. Free college is not some mystical fantasy, as it has indeed existed in the past and still does exist in small institutions scattered across America. The notion of free college can only exist in the public institutions, however, as the cost of tuition is remarkably lower than that of private institutions.

 

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