Concept explainers
Which of the following is NOT a feature associated with viruses?
- a. Cytoplasm
- b. Genetic in formation
- c. Protein coat
- d. Envelope
Introduction:
A virus is a small infectious agent that can’t be seen through the naked eyes. Viruses are made up of protein coat in which their genetic material is present. The viruses contain either double stranded or single stranded DNA or RNA as their genetic material.
Answer to Problem 1MCQ
Correct answer:
Cytoplasm is not the feature associated with viruses. Therefore, option a. is correct.
Explanation of Solution
Reason for the correct statement:
The structures of the virus is simple that lacks the basic characteirstics of the cells. It does not have organelles, ribososmes, nucleus, cytoplasm or even a cell membrane.
Option a. is given as “Cytoplasm”.
As, “the feature that is NOT associated with viruses is cytoplasm”, is the right answer.
Hence, option a. is correct.
Reasons for the incorrect statements:
Option b. is given as “Genetic information”.
All the viruses carry genetic material which guide the synthesis of proteins, since it is the feature of viruses. So, it is a wrong answer.
Option c. is given as “Protein coat”.
Protein coat is also known as capsid which surrounds the genetic material, since it is the feature of viruses. So, it is a wrong answer.
Option d. is given as “Envelope”.
Envelope is protein and lipid rich outer layer. It is derived from the host’s cell embrane parts, since it is the feature of viruses. So, it is a wrong answer.
Hence, option b., c., and d. are incorrect.
The viral structure lacks cytoplasm. Thus this feature is not associated with viruses.
Want to see more full solutions like this?
Chapter 16 Solutions
BIOLOGY
Additional Science Textbook Solutions
Essentials of Genetics (9th Edition) - Standalone book
Human Physiology: An Integrated Approach (7th Edition)
Human Anatomy & Physiology
Evolutionary Analysis (5th Edition)
LooseLeaf for Integrated Principles of Zoology
- The viral ________ plays a role in attaching a virion to the host cell. a. core b. capsid C. envelope d. both b and carrow_forwardViruses may include of any of the following structures, EXCEPT: a. DNA b. ribosomes c. capsids d. viral envelopes e. RNAarrow_forwardSymptoms of viral infections are caused by: (choose all that apply) A. Actions of the virus that result in cell damage or death B. Actions of the immune system that result in cell damage or death C. Changes in a cell's genetics that result in cancerarrow_forward
- The envelope of an animal virus is derived from the of its host cell. Select one: A. Cell wall B. Receptors C. Glycocalyx D. Membranearrow_forwardWhich of the following is common in animal viruses but NOT in bacteriophage? a. DNA b. Capsid c. Envelope d. Icosahedral shapearrow_forwardThe envelope of an animal virus is derived from the of itshost cell.a. cell wall b. membrane c. glycocalyx d. receptorsarrow_forward
- Give an example of each of the following types of viruses a. Double stranded DNA b. Single stranded DNA c. Positive sense RNA d. Negative sense RNA e. Retrovirusesarrow_forwardTo infect their specific host cells, viruses go through these chronological steps EXCEPT a. Release of progeny viruses b. Absorption and penetration of the viral particles c. Uncoating of the nucleic acid of the viral particles d. Synthesis and assembly of viral particle componentsarrow_forwardWhich of the following statements correctly describes viruses? Select one: A. They can reproduce by dividing. B. They cannot reproduce without a host cell. C. They have a genome similar to prokaryotic and eukaryotic cells. D. They can carry out their own metabolic activities.arrow_forward
- Virus spikes are commonly associated with which of the following? a. Non enveloped viruses b. Glycoproteins c. Lipids from the host cell membrane d. Inability to cause hemaglutinationarrow_forwardThe Size of Viruses varies from: a. 1-100 nm b. 25-300 nm c. 100-1000 nm d. None of the abovearrow_forwardWhich of the following descriptions correctly identifies a main structural difference between viruses with envelopes and viruses without envelopes? O A. Only viruses with envelopes package their genetic material by engulfing it. O B. Only viruses without envelopes interact with receptor proteins on the surface of the host cell. O. Only viruses without envelopes can release their genetic material into the cytoplasm of the host. O D. Only viruses with envelopes have their contents enclosed by a membranous layer containing lipids.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College