Which of the following is true regarding retroviral retrotransposons? A. They encode both reverse transcriptase and...
Which of the following is true regarding retroviral retrotransposons?
A. They encode both reverse transcriptase and an RNA polymerase
B. They have directly repeated long terminal repeats at their two ends when integrated into chromosomal DNA
C. Their genomic RNA can be translated to produce viral coat proteins
D. They leave double-strand breaks in the original donor DNA
E. The Alu element in our genome is an example of a retroviral-like retrotransposons
Homework Answers
Answer E. The Alu element in our genome is an example of a retroviral-like retrotransposons
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Which of the following is true regarding retroviral
retrotransposons?
A. They encode both reverse transcriptase and...
1. In retroviral replication (such as HIV) reverse transcriptase is used to convert viral ds RNA...
1. In retroviral replication (such as HIV) reverse transcriptase is used to convert viral ds RNA into viral ds DNA viral ss RNA viral mRNA viral ss DNA 2. Many viruses undergo an uncoating process prior to replication. Which statement depicts the uncoating process? the virus destroys the host nuclear membrane allowing it access to DNA the virus sheds its protein coat the virus shed its envelope when entering the cell via the cell membrane the virus sheds its...
........have genomes that consist of (+) strand RNA. Instead of RNA polymerase, they package a reverse...
........have genomes that consist of (+) strand RNA. Instead of RNA polymerase, they package a reverse transcriptase, which transcribes the RNA into a double-stranded DNA. The double-stranded DNA is then integrated into the host genome, where it directs the expression of the viral genes.
8. All of the following have been found in or associated with ALL retroviruses (endogenous. exogenous...
8. All of the following have been found in or associated with ALL retroviruses (endogenous. exogenous and human) EXCEPT: A) viral RNA dependent DNA polymerase B) oncogene C) gag D) env E) integrase 9. All of the following genes are unique to human retroviruses EXCEPT: A) tat B) nef C) rev D) vpu E) pol 10. All of the following findings are consistent with the identification of a virus as an endogenous retrovirus EXCEPT: A) presence of an oncogene B)...
Which among A-D is false regarding most DNA virus infections and most non-retroviral RNA virus infections?...
Which among A-D is false regarding most DNA virus infections and most non-retroviral RNA virus infections? A. Once inside the host cell, RNA virus replication usually (though not always) occurs completely in the cytoplasm. B. The genome of DNA viruses generally must enter the nucleus of the host cell they infect. C. A (+) sense RNA strand produced by an RNA virus could serve as an mRNA and be directly translated into protein. D. DNA viruses typically are assembled in...
19. True or False All viruses that require a reverse transcriptase entyme as a part of...
19. True or False All viruses that require a reverse transcriptase entyme as a part of their life cych RNA genomes. Name: SFSU ID# orch Chisom 182222 20. True or False: Humans & bacteria are the only organisms on Earth capable of being infected by a virus (C) Fill in the blank Please write the word or words that complete each statement in the box provided. (2 point each) 21. Body orifices such as the mouth, nose, and urethra are...
25. Which of the following is not true concerning eukaryotic mRNA processing (A) addition of a...
25. Which of the following is not true concerning eukaryotic mRNA processing (A) addition of a 3' poly-A tail (D) occurs in the nucleus (C) intron splicing (B) addition of a S' cap (E) occurs in the cytoplasm 26. Which of the following is involved in maintaining lysogeny in (A) PRE (B) PRM (C) PRI (D) PRO (E) all of the choices are correct Use the following diagram to answer questions 27-28. Each circle represents a DNA molecule and the...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms B) Symbionts C) Ornelles D) Pass 2. Which of the following is a property of life shared by pokaryote ndaryote A) nucleic acids used to store hereditary information B) the capacity to evolve C) the ability to replicate (reproduce) without invading a host cell D) presence of proteins E) the capacity to mutate , NOV 3. Which of the following is characteristic of the...
1. Which of the following statements about the flow of genetic information is true? a. Proteins...
1. Which of the following statements about the flow of genetic information is true? a. Proteins encode information that is used to produce other proteins of the same amino acid sequence. b. RNA encodes information that is translated into DNA, and DNA encodes information that is translated into proteins. c. Proteins encode information that can be translated into RNA, and RNA encodes information that can be transcribed into DNA. d. DNA encodes information that is translated into RNA, and RNA...
Below is a series of events involved in the mechanism of forming a retrotransposon. Place these...
Below is a series of events involved in the mechanism of forming a retrotransposon. Place these steps in the correct order 1. the DNA copy is made double-stranded 2. DNA of the transposable element is transcribed 3. The DNA of the transposable element is integrated into a target DNA site 4. The RNA is reverse transcribed by reverse transcriptase, producing a complementary DNA 4,2,3,1 3,2,4,1 2,4,1,3 4,2,1,3 1,2,3,4 What is the function of the poly(A) tail on most mRNAs To...
16. Which of the following enzymes adds DNA to the ends or material with duplication? a....
16. Which of the following enzymes adds DNA to the ends or material with duplication? a. Telomerase b. Polymerase d. Primase e. Ligase 1. Which of the following structures indicates where DNA replication begins a. DNA polymerase III b. Replication fork C. Helicase d. Origin of replication e. Centromeres 18. A select mutation is causing a cell lineape to be unable to replicate DNA SUccessfully NA successfully. When observed under a microscope, researchers observe that the DNA is able to...
19. True or False All viruses that require a reverse transcriptase entyme as a part of their life cych RNA genomes. Name: SFSU ID# orch Chisom 182222 20. True or False: Humans & bacteria are the only organisms on Earth capable of being infected by a virus (C) Fill in the blank Please write the word or words that complete each statement in the box provided. (2 point each) 21. Body orifices such as the mouth, nose, and urethra are...
25. Which of the following is not true concerning eukaryotic mRNA processing (A) addition of a 3' poly-A tail (D) occurs in the nucleus (C) intron splicing (B) addition of a S' cap (E) occurs in the cytoplasm 26. Which of the following is involved in maintaining lysogeny in (A) PRE (B) PRM (C) PRI (D) PRO (E) all of the choices are correct Use the following diagram to answer questions 27-28. Each circle represents a DNA molecule and the...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms B) Symbionts C) Ornelles D) Pass 2. Which of the following is a property of life shared by pokaryote ndaryote A) nucleic acids used to store hereditary information B) the capacity to evolve C) the ability to replicate (reproduce) without invading a host cell D) presence of proteins E) the capacity to mutate , NOV 3. Which of the following is characteristic of the...
Below is a series of events involved in the mechanism of forming a retrotransposon. Place these steps in the correct order 1. the DNA copy is made double-stranded 2. DNA of the transposable element is transcribed 3. The DNA of the transposable element is integrated into a target DNA site 4. The RNA is reverse transcribed by reverse transcriptase, producing a complementary DNA 4,2,3,1 3,2,4,1 2,4,1,3 4,2,1,3 1,2,3,4 What is the function of the poly(A) tail on most mRNAs To...
16. Which of the following enzymes adds DNA to the ends or material with duplication? a. Telomerase b. Polymerase d. Primase e. Ligase 1. Which of the following structures indicates where DNA replication begins a. DNA polymerase III b. Replication fork C. Helicase d. Origin of replication e. Centromeres 18. A select mutation is causing a cell lineape to be unable to replicate DNA SUccessfully NA successfully. When observed under a microscope, researchers observe that the DNA is able to...
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