Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 18, Problem 25CONQ
Describe the role of the Gag polyprotein during the assembly of HIV components at the host-cell plasma membrane.
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Chapter 18 Solutions
Genetics: Analysis and Principles
Ch. 18.1 - 1. What is a common feature found in all viruses?...Ch. 18.1 - 2. Viral genomes can be
a. DNA or RNA.
b....Ch. 18.2 - Prob. 1COMQCh. 18.2 - Prob. 2COMQCh. 18.3 - A mutation in phage results in 10-fold greater...Ch. 18.3 - 2. The cl gene that encodes the λ repressor has...Ch. 18.4 - A viral protein that is needed to make HIV DNA is...Ch. 18.4 - Prob. 2COMQCh. 18.4 - After HIV components are made, what is the correct...Ch. 18 - 1. Discuss why viruses are considered nonliving.
Ch. 18 - What structural features are common to all...Ch. 18 - 3. What are the similarities and differences among...Ch. 18 - Prob. 4CONQCh. 18 - Prob. 5CONQCh. 18 - Prob. 6CONQCh. 18 - Prob. 7CONQCh. 18 - Prob. 8CONQCh. 18 - Prob. 9CONQCh. 18 - Prob. 10CONQCh. 18 - 11. What is a prophage, a provirus, and an...Ch. 18 - Prob. 12CONQCh. 18 - Prob. 13CONQCh. 18 - 14. With regard to promoting the lytic or...Ch. 18 - 15. How do therepressor and the cro protein affect...Ch. 18 - Prob. 16CONQCh. 18 - Figure 18.11 shows a genetic switch that controls...Ch. 18 - Prob. 18CONQCh. 18 - Prob. 19CONQCh. 18 - Explain the role of RNase H (a component of...Ch. 18 - Prob. 21CONQCh. 18 - Prob. 22CONQCh. 18 - Prob. 23CONQCh. 18 - 24. Compare and contrast the roles of fully...Ch. 18 - 25. Describe the role of the Gag polyprotein...Ch. 18 - Prob. 26CONQCh. 18 - Prob. 27CONQCh. 18 - 1. Discuss how researchers determined that TMV is...Ch. 18 - Prob. 2EQCh. 18 - What is a reconstituted virus?Ch. 18 - Following the infection of healthy tobacco leaves...Ch. 18 - Prob. 5EQCh. 18 - Prob. 6EQCh. 18 - A researcher identified a mutation in PR of phage ...Ch. 18 - Experimentally, when an E. coli bacterium already...Ch. 18 - 9. A bacterium is exposed to a drug that inhibits...Ch. 18 - This question combines your knowledge of bacterial...Ch. 18 - Prob. 1QSDCCh. 18 - 2. Certain environmental conditions such as...Ch. 18 - 3. Browse the Internet to determine the drugs that...
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- Which form of HIV RNA, fully spliced, incompletely spiced, or unspliced, is needed during the early stage of the synthesis of HIV components?arrow_forwardExplain the reason why these viruses encode their own special fusion protein rather than making use of a cell's SNARES.arrow_forwardExplain why mRNA is preferred for making COVID-19 vaccines?arrow_forward
- Briefly describe how the Nucleocapsid protein of rabies virus promotes the switch from transcription to viral genomic replication.arrow_forwardWhich protein product of HTLV-1 functions as a transcriptional activator and is also considered to be the major viral oncoprotein?arrow_forwardWhat is the position and orientation of TAR important for HIV-1 transcription?arrow_forward
- Moderna and Pfizer vaccines for COVID-19 use mRNA to the Spike protein combined with lipids. Which of the following is/are advantages of this type of vaccine compared to an inactivated virus vaccine? Select ALL correct answers. a) The vaccine is more stable for transport. b) The vaccine does not contain the virus so it cannot give you COVID-19. c) The vaccine can be rapidly produced in a slightly different form to protect from variants of SARS-CoV-2. d) The vaccine does not need a booster.arrow_forwardDescribe how the lambda phage controls the lytic and lysogenic cycles. Include cro, cI, cII, and cIII in your description. Which of these proteins is responsible for the initiation of lysogeny or lytic pathways?arrow_forwardA cell infected with lambda bacteriophage can follow one of two pathways: the lytic or lysogenic pathway. Describe the similarities and differences between the structure of cI and Cro, paying particular attention to the features that allow them to carry out their different functions.arrow_forward
- Bacteriophage lambda is integrated in DNA of a host cell, which is exposed to UV light in a body of water in the environment. Describe the sequence of events that occurs in its life cycle. Briefly describe the role of the Lambda repressor (cI) and cII activator to regulate the switch between the lysogenic and lytic cycles of phage Lambda.arrow_forwardIn the study of the SARS-CoV virus protein codes, it was discovered that eight potential open reading frames (ORFs) encode hypothetical SARS‐CoV‐specific proteins which lack obvious sequence similarity to known proteins. What possible function could these proteins have that would add to the infectious quality of the virus?arrow_forwardWhat is the function of the Matrix protein during rabies virus pathogenesis?arrow_forward
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