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Shapes of viruses
Viruses occur in a wide variety of shapes. Some are spherical or polyhedral . Some are helical appearing cylindrical or rod-like and other are complex. Viruses are usually classified on the basis of their hosts, as for example, animal viruses (infecting animal cells), plant viruses (infecting plant cells) and bacteriophages (infecting bacterial cells).
Figure: Different shapes in viruses: (a) Spherical; (b) Helical, and (c) Complex
Interferons are small glycoproteins formed by virus-infected cells that inhibit viral infection. They are heterogeneous. Gamma interferons induce MHC class II antigens in macrophag
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1. In chickens rose comb ( R ) is dominant over single comb ( r ). A rose-combed male is mated to a rose-combed female. Eighteen chicks are produced, ten of which are rose-combed,
As you travel south from the tundra you will enter the circumpolar belt of coniferous forests which stretches across North America to Eurasia, this region is called taiga, a world
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Q. Write the meaning of Gestational Diabetes Mellitus? Gestational Diabetes Mellitus (GDM) is defined as glucose intolerance of any severity that has its onset or is first reco
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