Which is the correct answer A virus does not have all of the parts that are needed to survive and reproduce. The"body" of a virus is MISSING these important parts:Surface proteins (for bonding to other cells)Genetic instructions (DNA or RNA)CRibosomes and other organellesd.A fatty lipid "envelope" (to hold the parts together)

Structure of VirusesViruses vary in their structure. an epidemic particle consists of DNA or RNA…

virus does not have all of the parts that are needed to survive and reproduce. The Dody" of a virus is MISSING these important parts: a Surface proteins (for bonding to other cells) Genetic instructions (DNA or RNA) C. Ribosomes and other organelles d A fatty lipid "envelope" (to hold the parts together)

virus does not have all of the parts that are needed to survive and reproduce. The Dody" of a virus is MISSING these important parts: a Surface proteins (for bonding to other cells) Genetic instructions (DNA or RNA) C. Ribosomes and other organelles d A fatty lipid "envelope" (to hold the parts together)

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter13: Early Life Forms And The Viruses

Section: Chapter Questions

Problem 3CT

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The genome of a virus consists of (a) DNA (b) RNA (c) prions (d) DNA and RNA (e) DNA or RNA
Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased in a viral membrane The capsomere is made up of small protein subunits called capsids. DNA is the genetic material in all viruses. Glycoproteins help the virus attach to the host cell.
Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA integrated into host DNA 2.viral proteins synthesized on host ribosomes 3. viral DNA uses host enzymes to transcribe viral RNA 4. reverse transcriptase catalyzes synthesis of ssDNA 5. synthesis of second DNA strand (a) 5, 2, 1, 3, 4 (b) 5, 2, 3, 4, 1 (c) 4, 5, 1, 3, 2 (d) 4, 1, 2, 3, 5 (e) 2, 1, 3, 4, 5
Figure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?
A scientist discovers a new virus with a linear, RNA genome surrounded by a helical capsid. The virus is most likely a member of which family based on structure classification? Rabies virus Herpesviruses Retroviruses Influenza viruses
Which statement is true? a. A virion contains DNA and RNA. b. Viruses are acellular. c. Viruses replicate outside of the cell. d. Most viruses are easily visualized with a light microscope.
Which of the following is a property of life that viruses lack? The manufacture and use of complex carbon containing molecules The potential to pass hereditary material to offspring Engages in self-sustaining biological processes such as homeostasis and metabolism The potential to grow and expand their populations
For a virus to transform a cell, which of the following events must occur: Group of answer choices Cytopathic effects must take place Virion production must be robust All answers are correct The cell must continue to divide The entire viral genome must always be integrated into host DNA
Which of the following proteins would you expect a mutation in for a virus to infect a new host cell? RNA Dependent RNA polymerase/Reverse Transcriptase/DNA polymerase/etc. Hemagglutinin/Glycoprotein/GP120/etc. Fusion protein Capsid/Nucleocapsid proteins Why? What is that protein responsible for?
Why would viral genome integration into host cell integration be advantageous to a virus? It enables the virus to kill the cell. It allows the virus to infect cells it would not normally infect. It allows the virus to be passed on to future generations of host cells. It allows the virus to destroy the host cell's DNA. It speeds up viral replication.
Select all the following statements that are TRUE regarding viruses: □ All viruses are potentially dangerous to humans because any virus can infect any host. □ Viruses are fastidious pathogens that require complex growth media. □ Viruses are noncellular particles that take over the metabolism of a cell to generate more virus particles. □ Viruses are genomes made of RNA and DNA that lack many protein. □ Viruses can infect all other known life forms on earth, from Archaea to humans.
TRUE or FALSE: All icosahedral viruses are enveloped. - Bacteriophages containing icosahedral heads attached to helical tails have this type of capsid structure: Modified Complex Icosahelical Helicosahedron