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:
- 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.
- 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.
- 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>
Another important function of microfilaments is to help divide the cell during mitosis (cell division) microfilaments aid the process of cytokinesis which is when the cell “pinches off” and physically separated into two daughter cells
Answer:
From what I remember in my 9th grade biology class, it's usually half that amount.
Answer:
Plants
Explanation:
They are multicellular organisms. In plants there are two types of reproduction :- sexual and asexual. Sexual reproduction happens when androecium and gynoecium both fuses and in asexual reproduction when only androecium or gynoecium is present in a plant. Androecium us a male part off flower and gynoecium is the female part of flower. Plants can't move that we all know and they are autotrophs coz they can make their own food in presence of sunlight, water, air and chlorophyll.....
I hope u will understand it :-) :-)