MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following viruses carry minus-strand RNA? |
| A. | rhabdoviruses |
| B. | picornaviruses |
| C. | retroviruses |
| D. | tobacco mosaic viruses |
| Answer» B. picornaviruses | |
| 2. |
Which of the following are characteristics of the process viropexis? |
| A. | phagocytic process |
| B. | plant viruses penetrate host cells through ectodesmata |
| C. | occurs by the enzyme RNA polymerase |
| D. | phagocytic process and occurs by the enzyme lysosomal proteases |
| Answer» E. | |
| 3. |
RNA in animal viruses exist as circular dsRNA. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
WHICH_OF_THE_FOLLOWING_ARE_CHARACTERISTICS_OF_THE_PROCESS_VIROPEXIS??$ |
| A. | phagocytic process |
| B. | plant viruses penetrate host cells through ectodesmata |
| C. | occurs by the enzyme RNA polymerase |
| D. | phagocytic process and occurs by the enzyme lysosomal proteases |
| Answer» E. | |
| 5. |
RNA_IN_ANIMAL_VIRUSES_EXIST_AS_CIRCULAR_DSRNA.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which of the following viruses carry minus-strand RNA? |
| A. | rhabdoviruses |
| B. | picornaviruses |
| C. | retroviruses |
| D. | tobacco mosaic viruses |
| Answer» B. picornaviruses | |
| 7. |
In which of the following viruses DNA forms hairpins? |
| A. | parvoviruses |
| B. | herpesviruses |
| C. | poxviruses |
| D. | picornaviruses |
| Answer» B. herpesviruses | |
| 8. |
In papovaviruses, DNA occurs in which of the following forms? |
| A. | linear dsDNA |
| B. | linear ssDNA |
| C. | supercoiled circular dsDNA |
| D. | supercoiled circular ssDNA |
| Answer» D. supercoiled circular ssDNA | |
| 9. |
Parvoviruses contain how many genes? |
| A. | 100 genes |
| B. | 500 genes |
| C. | 40 genes |
| D. | 3 genes |
| Answer» E. | |
| 10. |
Animal and plant viruses contain both DNA and RNA in the same virion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
The fringes on animal viruses like influenza virus is made up of ______________ |
| A. | lipoproteins |
| B. | glycoproteins |
| C. | cellulose |
| D. | polysaccharides |
| Answer» C. cellulose | |
| 12. |
Adenoviruses exhibit which of the following symmetry? |
| A. | helical symmetry |
| B. | circular symmetry |
| C. | icosahedral symmetry |
| D. | complex structure symmetry |
| Answer» D. complex structure symmetry | |
| 13. |
The envelope surrounding the nucleocapsid of some animal viruses is made up of which of the following structures? |
| A. | lipoproteins |
| B. | lipopolysaccharides |
| C. | peptidoglycan |
| D. | chitin |
| Answer» B. lipopolysaccharides | |
| 14. |
Which of the following symmetry is exhibited by rod-shaped viruses? |
| A. | icosahedral |
| B. | helical |
| C. | complex |
| D. | circular |
| Answer» C. complex | |