MCQs on Viruses and Viroids For Medical Exams & Pharmacist Exam

MCQs on Viruses and Viroids For Medical Exams & 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.

Viruses and Viroids MCQs Quiz 

1. Human Immuno-deficiency Virus (HIV) has a protein coat and a genetic material which is__

(1) single stranded DNA

(2) double stranded DNA

(3) single stranded RNA

(4) double stranded RNA

Ans. (3)

2. Viroids’ differ from Viruses in being___

(1) naked RNA molecules only

(2) naked DNA molecules only

(3) naked DNA packaged with viral genome

(4) satellite RNA packaged with viral genome

Ans. (1)

3. The genetic material in viruses is________

(1) in some viruses both DNA and RNA

(2) only RNA

(3) only DNA

(4) in some viruses only DNA and in some only RNA

Ans. (4)

4. Bacteriophage is made up of________

(1) DNA

(2) nucleoprotein

(3) carbon and sulphur

(4) protein only

Ans. (2)

5. Which of the following has protein_______?

(1) Provirus

(2) Prophage

(3) Viroid

(4) Virion

Ans. (4)

6. Prions are infectious particles consisting of only proteins without nucleic acid. They cause diseases like_______

(1) Scrapie

(2) Kuru

(3) Mad Cow disease 

(4) all of the above

Ans. (4)

7. What is common among TMV, HIV and Hepatitis-B viruses ?

(1) Reverse transcriptase

(2) RNA

(4) Sheath of lipoprotein

(3) DNA

Ans. (2)

8. Which of the following animal virus contains double stranded DNA ?

(1) Polio virus

(2) Mumps virus

(3) Influenza virus

(4) None of the above

Ans. (4)

9. Which of the following statements is suitably applicable to viruses?

(1) Viruses are genes, enclosed in a protein coat

(2) Viruses are chromatids, which have escaped from the cell

(3) Viruses are border-line entities between living beings and non-living matter

(4) All the above

Ans. (4)

10. Phages that show lysogenic cycle are called_________

(1) temperate phages 

(2) virulent phages

(3) avirulent phages

(4) lytic phages

Ans. (3)

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