Viruses can vary with respect to all of the following characteristics except A) the presence or absence of a capsid B) the type of host cell it can infect C) single- or double-stranded nucleic acids D) DNA or RNA as the genetic material E) the presence or absence of an envelope
Added by Charles V.
Close
Step 1
Step 1: Viruses can vary in terms of the presence or absence of a capsid, which is the protein coat surrounding the genetic material. Show more…
Show all steps
Your feedback will help us improve your experience
Imaan A and 81 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which of the following is true regarding viruses? SELECT ALL THAT APPLY. Select one or more: a. Viruses can be classified by the presence/ absence of an envelope, the overall morphology, or the genome type. b. None of these answers are correct. c. Cells and the immune system have natural defenses against viruses, but many viruses have mechanisms to defeat them. d. Viral replication requires host cellular machinery as well as enzymes that the virus provided. e. Retroviruses, such as HIV, have a unique life cycle that involves converting RNA into DNA.
Imaan A.
All of the following are characteristics of viruses except a. Viruses are non-cellular b. Viruses are resistant to antibiotics c. Viruses have nucleic acid surrounded by a plasma membrane d. Viruses lack an ATP- generating mechanism e. Viruses contain only one type of nucleic acid
Bryan V.
A virus cannot reproduce on its own. Viral DNA or RNA must enter the host cell and direct the cell to make the materials needed to produce more viral particles. There are two pathways a virus may take: lytic or lysogenic. Both pathways include five steps: attachment, penetration, replication and synthesis, assembly, and release. One type of lysogenic virus is the herpes virus, which causes cold sores. How does a lysogenic virus DIFFER from a typical lytic virus? A) A lysogenic virus attaches and penetrates, but does not integrate into the host DNA until conditions are favorable. B) The lysogenic virus never instructs the host to produce new viral copies; instead it is replicated only through binary fission of the host cell. C) The lysogenic virus, after penetration, immediately directs the host cell to replicate and synthesize proteins and then assemble new viral particles. D) A lysogenic virus, after penetration, becomes part of the host cell DNA, is replicated when the host divides, but does not not immediately replicate.
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD