Question

which of the following shows single standard RNA and lacks protein coat?
a. Bacteriophage
b. plant virus
c. viroid
d. animal virus​

Answer 1

Answer

Which of the following shows single standard RNA and lacks protein coat?

a. Bacteriophage

b. Plant virus

c. Viroid ☑️

d. Animal virus

Answer 2

A viroid is a single stranded RNA that ‘lacks a protein coat’.

Option: (c)  

Explanation:

• A viroid is a smallest of all organisms that lives in this mother earth, they are tiny organisms that are mostly found on plants; they are infectious pathogens that attack the plants mostly.  

• The first identified viroid is the ‘potato spindle tuber’ disease.  

• The major difference between a ‘virus and a viroid’ is that the virus has a protein coat that covers it whereas the viroid does not have a ‘protein coat’.  

Learn more about protein coat

The protein coat of virus is calledA. Capsomere

B. Capsid

C. Cosmid

D. Cyanophage

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