Viruses and Viroids Questions & Answers For GPAT, AIIMS, JIPMER, NEET PG & Pharmacist Exam

Viruses and Viroids Questions & Answers For GPAT, AIIMS, JIPMER, NEET PG & Pharmacist Exam

Before we discuss about these Classification of Viruses and Characteristics of Viruses questions with Answers, we have to know is the most important topic in biology for GPAT, AIIMS, JIPMER, CSIR NET, NEET PG & Pharmacist Exam and all  medical exams. so kindly do check it. Our live learns team prepared these questions with answers for you free in pdf format. It is easy to ace your exam.

MCQs on Viruses and Viroids For Medical Exams 

1. Vaccination against smallpox was developed by_____

(2) Edward Jenner

(1) Louis Pasteur

(4) Alexander Flemming

(3) Robert Koch

Ans. (2)

2. Prions are________

(1) Viruses with cell wall

(2) Viruses with nucleic acids

(3) Infectious proteins with nucleic acids

(4) infectious proteins without nucleic acids

Ans.(4)

3. Which of the following enzymes is present the bacteriophage ?

(2) Lysozyme

(1) Protease

(3) Succinic dehydrogenase

(4) Urease

Ans.(2)

4. Interferons are synthesized in response

(2) bacteria

(1) mycoplasma

(4) fungi

(3) viruses

Ans.(3)

5. Interferons are________

(1) antiviral proteins

(2) antibacterial proteins

(3) anticancer proteins

(4) none of the above

Ans.(1)

6. Which of the following is the most infectious disease?

(1) Hepatitis-B

(2) AIDS

(3) Cough and cold

(4) Malaria

Ans.(1)

7. Cauliflower mosaic virus contains

(2) ds RNA

(1) ss RNA

(4) ss DNA

(3) ds DNA

 Ans. (3)      

8. Viruses are no more ‘alive than isolated chromosomes because

(1) they require both RNA and DNA

(2) both need food molecules

(3) both require oxygen for respiration

(4) both require the environment of a cell to replicate

Ans.(4)

9. Tobacco mosaic virus is a tubular filament of size

(2) 300 x 5 nm

(1) 300 >x 10 nm

(4) 700 x 30 nm

(3) 300x 20 nm

Ans.(3)

10. Which one of the following statements about viruses is correct ?

(1) Viruses possess their own metabolic system

(2) All viruses contain both RNA and DNA

(3) Viruses are obligate parasites

(4) Nucleic acid of viruses is known as capsid

Ans.(3)