Homework Answers
Question 1:
A. Bacteriophage
Bacteriophage is not involved in bacterial conjugation. It is involved in Transduction in which donor DNA of bacteriophage are transferred or infect the host bacteria.
F+ and F- cells involve in bacterial conjugation.F+ cells contain F plasmid or F factor ( fertility factor) which has genes required for the transfer of conjugation.It act as donors and its DNA gets replicated ,newly synthesized DNA from F+ gets transferred to F- cells ( lack F plasmid or fertility factor).
The F plasmid which is known as conjugative plasmid involve in conjugation.It contains gene for bacterial conjugation.conjugative pili also known as sex pili allow the transfer of DNA from one bacteria to another in conjugation.
Question 2:
B. Diploid genome
Eukaryotes are with diploid genome . Diploid genome is not a feature of prokaryotic.
Prokaryotes are usually with haploid,circular genome found in the nucleoid( cytosol or cytoplasmic) and it lacks membrane bound organelles.
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QUESTION 1 Which of the following is not involved in bacterial conjugation? a. Bacteriophage...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded by a to regulate the entry and exit of materials through the cell, the help maintain cell shape and structure, and the(when present) to aid in attachment and evasion. that contains the glycocalyx to fimbriae cell envelope conjugation pili cyanobacteria cytoplasm cell wall flagella The DNA of a prokaryote is arranged in a single coiled chromosome located in Some prokaryotes carry genes on extrachromosomal...
Please solve all questions! 66. Harmless variants or their derivatives of pathogens, which stimulate the immune...
Please solve all questions!
66. Harmless variants or their derivatives of pathogens, which stimulate the immune system are called a. transformers b) vaccines c. viral envelopes d. mutagens 67. Iniectious agents of disease consisting only of proteins: a. viroidsb. viruses c. introns prions e. transposons 68. Plasmids, transposons and viruses are all a. infectious d. 2 of the above e.none of the above mobile genetic elements c. immobile genetic elements The major component of the bacterial genome is ircular double...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for bacteria B) In conjugation a bacterium carries a fertility plasmid. C) In conjugation a bacterium forms a small hollow tube called a pilus. D) In conjugation a bacterium attaches to a neighboring bacterial cell that lacks a fertility plasmid. E) Conjugation can be a problem because fertility plasmids often carry genes that endow cells with drug resistance or the ability to produce toxins.
Which of the following is involved in transformation? A. Sex pili B. transfer of naked DNA...
Which of the following is involved in transformation? A. Sex pili B. transfer of naked DNA to a living cell C. bacteriophage D. jumping genes
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water...
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water across the membrane is known as a) water transport b) osmosis e) hydrolysis d) hydroponics e) none of the above 93) When bacteria can grow in the absence or presence of oxygen, with no preference, they are known as: a) facultative acrobes b) acrobes c) acrotolerant d) microcarophiles e) anaerobic 94) Bacteria that grow at very cold temperatures (even below freezing)...
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or...
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or answers the question in each case and then indicate it on the answer card. Work at a steady pace and you should have ample time to finish the examination. MULTIPLE CHOICE (2 points each) chi Which group of organisms other than viruses is represented by the most number of individuals on earth? Insects b. Bacteria Archea d. Rats e. Earthworms c. A quaint bacteria...
1. In a transformation experiment, E. coli uptake pRGLO plasmids that carry GFP gene. The transformed...
1. In a transformation experiment, E. coli uptake pRGLO plasmids that carry GFP gene. The transformed bacterial cells are grown on an ampicillin-treated agar plate. Which of the following is considered as a vector? GFP gene C E. coli cell c ampicillin-treated agar plate 0.5 points QUESTION 2 1. What is the function of bla gene? Break down the ampicillin Regulate the transcription of GFP gene Express the fluorescent trait in bacteria Control the uptake of DNA molecules in bacteria...
please help me (make sure the answers are correct please) 20. Which of the following is...
please help me (make sure the answers are correct
please)
20. Which of the following is NOT a fermentation product of bacteria? А. ethanol lactic acid C. pyruvate butanol All of the above are fermentation products of bacteria You collect a mid-stream urine specimen from a male patient. After analysis, you determine that there are 5,600 bacteria/ml of urine and a single species of bacteria in the sample. What would tell the attending physician? The patient does have a urinary...
help me please Question 20 (1 point) Genetic change in bacteria can be brought about by:...
help me please
Question 20 (1 point) Genetic change in bacteria can be brought about by: a. Mutation Ob. Conjugation c. Transduction Od. Transformation Oe. All of the above. Question 23 (1 point) 7. F-plasmids are that contain the genetic information for -------- a. genes, replication Ob. DNA molecules, the F-pilus c. viruses, interferon d. RNA molecules, conjugation Oe. More than one of the above Question 24 (1 point) 10. A viroid is: O a. A complete infectious virus particle....
regarding genetics. can someone help and explain WHY the answer is chosen for the question 18....
regarding genetics. can someone help and explain WHY the
answer is chosen for the question
18. What is the purpose of using a blender in the Hershey & Chase experiment to identify the identity of genetic material? A) Break the conjugation bridge B) Lyse the infected cells C) Displace the bacteriophage material that has not been injected into the bacterial cell D) Resuspend all the cells and particles that have fallen to the bottom of the culture E) Displace dsDNA...
Bacterial cells Complete the following paragraph to describe the components of bacterial cells. Prokaryotes are surrounded by a to regulate the entry and exit of materials through the cell, the help maintain cell shape and structure, and the(when present) to aid in attachment and evasion. that contains the glycocalyx to fimbriae cell envelope conjugation pili cyanobacteria cytoplasm cell wall flagella The DNA of a prokaryote is arranged in a single coiled chromosome located in Some prokaryotes carry genes on extrachromosomal...
Please solve all questions!
66. Harmless variants or their derivatives of pathogens, which stimulate the immune system are called a. transformers b) vaccines c. viral envelopes d. mutagens 67. Iniectious agents of disease consisting only of proteins: a. viroidsb. viruses c. introns prions e. transposons 68. Plasmids, transposons and viruses are all a. infectious d. 2 of the above e.none of the above mobile genetic elements c. immobile genetic elements The major component of the bacterial genome is ircular double...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for bacteria B) In conjugation a bacterium carries a fertility plasmid. C) In conjugation a bacterium forms a small hollow tube called a pilus. D) In conjugation a bacterium attaches to a neighboring bacterial cell that lacks a fertility plasmid. E) Conjugation can be a problem because fertility plasmids often carry genes that endow cells with drug resistance or the ability to produce toxins.
91) Bacteria reproduce through: a) sex b) mitosis c) F-pili d) binary fission e) conjugation 92) Diffusion of water across the membrane is known as a) water transport b) osmosis e) hydrolysis d) hydroponics e) none of the above 93) When bacteria can grow in the absence or presence of oxygen, with no preference, they are known as: a) facultative acrobes b) acrobes c) acrotolerant d) microcarophiles e) anaerobic 94) Bacteria that grow at very cold temperatures (even below freezing)...
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or answers the question in each case and then indicate it on the answer card. Work at a steady pace and you should have ample time to finish the examination. MULTIPLE CHOICE (2 points each) chi Which group of organisms other than viruses is represented by the most number of individuals on earth? Insects b. Bacteria Archea d. Rats e. Earthworms c. A quaint bacteria...
1. In a transformation experiment, E. coli uptake pRGLO plasmids that carry GFP gene. The transformed bacterial cells are grown on an ampicillin-treated agar plate. Which of the following is considered as a vector? GFP gene C E. coli cell c ampicillin-treated agar plate 0.5 points QUESTION 2 1. What is the function of bla gene? Break down the ampicillin Regulate the transcription of GFP gene Express the fluorescent trait in bacteria Control the uptake of DNA molecules in bacteria...
please help me (make sure the answers are correct
please)
20. Which of the following is NOT a fermentation product of bacteria? А. ethanol lactic acid C. pyruvate butanol All of the above are fermentation products of bacteria You collect a mid-stream urine specimen from a male patient. After analysis, you determine that there are 5,600 bacteria/ml of urine and a single species of bacteria in the sample. What would tell the attending physician? The patient does have a urinary...
help me please
Question 20 (1 point) Genetic change in bacteria can be brought about by: a. Mutation Ob. Conjugation c. Transduction Od. Transformation Oe. All of the above. Question 23 (1 point) 7. F-plasmids are that contain the genetic information for -------- a. genes, replication Ob. DNA molecules, the F-pilus c. viruses, interferon d. RNA molecules, conjugation Oe. More than one of the above Question 24 (1 point) 10. A viroid is: O a. A complete infectious virus particle....
regarding genetics. can someone help and explain WHY the
answer is chosen for the question
18. What is the purpose of using a blender in the Hershey & Chase experiment to identify the identity of genetic material? A) Break the conjugation bridge B) Lyse the infected cells C) Displace the bacteriophage material that has not been injected into the bacterial cell D) Resuspend all the cells and particles that have fallen to the bottom of the culture E) Displace dsDNA...
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