BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 19, Problem 4SA
Summary Introduction
Introduction:
A virus is a non-cellular infectious particle that replicates only inside a living cell. Their genome consists of
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A virus would NEVER contain ______________
Select one:
a.
DNA
b.
RNA
c.
Reverse Transcriptase
d.
Ribosomes
Viruses in the Herpesviridae family are double-stranded DNA enveloped viruses. Specifically the virus Varicella can cause chickenpox, which when in adults is called ___________. This can exist as a ____________ in the DNA of host cells.
Select one:
a.herpes/ Provirus
b.measles/ Provirus
c.Shingles / Prophage
d.None of the Above
e.Shingles / Provirus
The HIV virus produces copies of its genome through:
A.
DNA replication
B.
Reverse transcription followed by integration then normal transcription
C.
RNA replication from an RNA template
D.
differential splicing
Chapter 19 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 19 - ________ can have a genome of either RNA or DNA....Ch. 19 - Peptidoglycan is seen only in cell walls of...Ch. 19 - In _______, viral DNA becomes integrated into a...Ch. 19 - Prob. 4SACh. 19 - Prob. 5SACh. 19 - Prob. 6SACh. 19 - Prob. 7SACh. 19 - _______ are oxygen-releasing photoautotrophs. a....Ch. 19 - Prob. 9SACh. 19 - Vitamin-producing E. coli cells in your gut are...
Ch. 19 - Prob. 11SACh. 19 - Prob. 12SACh. 19 - Eukaryotes are most closely related to _______. a....Ch. 19 - Match each disease with the type of pathogen that...Ch. 19 - Prob. 15SACh. 19 - Prob. 1CTCh. 19 - Methanogens have been found in the human gut and...Ch. 19 - Review the description of Fred Griffiths...Ch. 19 - The antibiotic penicillin interferes with...Ch. 19 - Many compounds secreted by soil bacteria have been...
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- Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its genome? A. RNA dependent RNA polymerase B. RNA dependent DNA polymerase C. Reverse transcriptase D. DNA Polymerase I E. DNA dependent RNA polymerasearrow_forwardViruses code for their own independent protein synthesis. A. True B. Falsearrow_forwardOncogenic virus cores can be_______. a. RNA b. DNA c. neither RNA nor DNA d. either RNA or DNAarrow_forward
- A virus is isolated, and individual virions appear spherical. What type of virus is this? A. Bacteriophage B. Helical C. Icosahedral D. Lysogenicarrow_forward95) The herpesviruses: a. Can have an abortive infection b. Have three round of protein translation in its replication cycles, one before genome replication and two after genome replication c. Can have a persistent infection d. the CD4 is the major receptorarrow_forwardThe viral envelope is made up of _______. A. Lipids and Proteins B. Proteins C. Glycoproteins D. AOTA E. NOTAarrow_forward
- Influenza viruses use to replicate its genome whereas retroviruses use before they can integrate their genome into the host DNA. A. reverse transcriptase; RNA dependent RNA polymerase B. RNA dependent RNA polymerase; reverse transcriptase C. replicase; DNA polymerase D. DNA polymerase, replicasearrow_forwardIf the HIV did not have a reverse transcriptase enzyme, then which of the following would apply? Select one: a. The virus can make use of the reverse transcriptase enzyme from the host cell to convert its RNA into DNA b. Viral particles will be produced without reverse transcriptase enzyme since the original HIV is an RNA virus and needs to assemble RNA ant coat proteins together c. The virus will manufacture its proteins from its RNA using translation and ribosomes from host cell d. Provirus will not be formed and assembly of viral particles will never occur e. The virus will not be able to recognise the host cell and therefore entry into the cell is blockedarrow_forwardIn _____________, a bacteriophage may accidentally package random bacterial DNA and move it into a new recipient bacterial cell. Select one: a.conjugation b.transduction c.transcription d.transformation e.replicationarrow_forward
- Which is the correct answerarrow_forwardWe are confronted with a new RNA virus that uses x-proteins to attach to host cells and primarily infects liver cells. Based on this we would expect: (2 answers only) a. possible latent infections b. viral susceptibility to valacyclovir c. viral suspeptibility to RNA->RNA pol inhibitor d. symptoms of hepatitsarrow_forwardIn order for a +ssRNA virus to undergo replication, it first needs to ________. a. translate -ssRNA from viral DNA. b. transcribe a copy of -ssRNA c. have RNA polymerase make copies directly from +ssRNA d. transcribe +ssRNA from host DNA e. translate viral proteins from the +ssRNA strand directlyarrow_forward
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