It is false for viruses:
Correct answer: A. Viruses contain both DNA and RNA
- A. Viruses contain both DNA and RNA
- B. No independent metabolic activities
- C. Viruses are non-cellular
- D. Tiny and infectious agent
Explanation
Viruses do not contain both DNA and RNA simultaneously. They can have either DNA or RNA as their genetic material, but not both at the same time. A virus is classified as either a DNA virus (contains DNA) or an RNA virus (contains RNA). For example, the influenza virus is an RNA virus, while the herpes simplex virus is a DNA virus. Some viruses have single-stranded genetic material (either DNA or RNA), while others have double-stranded genetic material. The presence of either DNA or RNA is one of the defining characteristics used to classify viruses into different groups.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
Practise Biodiversity and Variety of Life
3,130 free Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.