Admin Table of Contents
What pathogen has DNA and RNA?
Bacterial viruses (bacteriophages or phages) have DNA or RNA as genetic material.
Which pathogen has a protein coat?
Viruses are usually geometric shaped and have similar basic structures. The capsid or protein coat is made up of simple repeating protein units known as capsomeres.
What’s made of DNA or RNA and a protein coat?
Viruses are made up of nucleic acids (DNA or RNA) surrounded by a protein coat. They are smaller than the smallest bacterium. Viruses consist of nucleic acid (genetic material) surrounded by a capsid (protein coat).
Do viruses contain RNA or DNA in a protein coat?
All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.
Do prions have a protein coat?
Viruses include only RNA molecules that do not coat protein, whereas RNA or DNA molecules are wrapped within a protein coat in viruses….Complete answer:
| VIROIDS | PRIONS |
|---|---|
| Protein coat is absent. | Protein coat is not known. |
What is a protein coat?
(virology) A coat of proteins surrounding the nucleic acid of a virus. Supplement. The protein coat is made up of protein subunits called capsomere. Additional layer of lipid molecules may envelope the protein coat.
What is the major difference between the composition of DNA and RNA?
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Do prions have a coat?
Viroids are even more simple than viruses. They are small, circular, single-stranded molecules of infectious RNA lacking even a protein coat.