Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Structural Features of Viruses
Size of Viruses
Virus particles vary widely in size. The smallest viruses e.g. virus of foot and mouth disease measuring about 20 mill microns are about the size of largest protein molecules. The largest viruses measuring about 350 nm are as large as the smallest bacteria (Mycoplasma).
Shape and Symmetry of Viruses
Most plant viruses are rod shaped or filamentous while the animal viruses may be filamentous or roughly spherical filamentous vireos are cylindrical structures with a helical symmetry, The most animal viruses ,the helix is highly coiled into a sub spherical structure .The spherical vireos are polyhedral structured like diamonds with a typical icosahedra symmetry , each having 20 equilateral triangular sides or facets an 12 vertices or corners.
Poxviruses and rabies virus are unique in shape and symmetry. Poxviruses are brick shaped and rabies virus is bullet shaped. These viruses are complex in structure and symmetry.
Viruses of bacteria are also unique in shape and structure. Each vision is a tadpole shaped structure having two main parts a polyhedral headland a spring like or conical tail with a thin collar in between. The free flattened end of the tail bears a large endplate or base plate from which slender hook like legs, called tail fibres and six small pegs or spikes project different directions. Contain bacteriophages lack the endplate, tail fibres and pages.
Bacteriophage Influenza Virus
Herpes Virus Polio virus
What problem would most likely to occur if a haploid cell attempted to perform meiosis?
Q. What are the two major groups into which flowering plants are divided? Angiosperm plants are separated into monocotyledonous (monocots) and dicotyledonous (dicots).
phyla of animal like protists that have free living members
general characteristic of phylum protozoa
How are lipids classified?
Define the meaning of Open Kettles? A number of foods can be satisfactorily concentrated in open kettles which are heated by steam. This is the case for jellies and jams, toma
Q. Provision of Additional Tooth Support? Transitioning a patient from a complete denture to an implant supported fixed prosthesis have resulted in a dramatic improvement in th
Many definitions of species have been offered, but none of them proved to be satisfactory. The definitions did not categorically provide the basis to decide whether two similar gro
Q. Protein electrophoresis - Measuring Genetic Diversity? This method is now being used to measure genetic diversity. Genes contain the information required to produce enzymes
The atomic number of argon is 18. Will argon tend to form bonds with other elements? Describe your answer. Argon will not tend to form bonds with other elements. With an atomi
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd