Answer:
Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
Explanation:
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>
Volcanoes, earthquakes and mountain ranges are all results of the tectonic movement of the Earth.
<span>When two plates collide and one does not completely give way and go under the other the crust is pushed up forming mountain ranges.
</span>An earthquake is the shaking and vibration of the Earth's crust due to movement<span> of the Earth's </span>plates<span> (plate </span>tectonics<span>).
</span>And volcano is created <span>when </span>plates<span> are pushed together or pulled apart.
So, the relationship between volcanoes, earthquakes and mountain ranges is their connection with the tectonic movement of the Earth.</span>
Plasma cells are designed to churn out Antibodies. These are proteins that have a variable region which is complementary ( perfect shape fit) for the virus' antigen and can therefore bind to the antigen, making the virus harmless or tagging it to be consumed by a phagocyte.
Cell membrane would be corr3eect
