Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
14th Edition
ISBN: 9781305775480
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 20, Problem 6SQ
Summary Introduction
Introduction: An extrachromosomal DNA present in a bacterial cell (other than the linear DNA) is called as plasmids. Plasmids are extremely small, circular, and dsDNA that can be passed to other cells. The process of transfer of plasmids between the cells is called as conjugation. Conjugation between cells occurs through a small bridge present across two cells called as pilus (sex pili). The plasmid-containing cells are called as F+ cells. The plasmid is transferred from F+ to F- cells through sex pilus.
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A plasmid is a circle of________ . a. RNA c. either RNA or DNA b. DNA d histone proteins
Small circular molecules of DNA in bacteria ____.
a.
result from the activity of restriction enzymes
b.
are plasmids
c.
cannot survive outside of the cell
d.
are eventually degraded
e.
are DNA fragments from their main chromosome
The plasmid (episome) F factor mediates which of the following?
a. Transduction
b. Transformation
c. Conjugation
d. Replication
e. Translocation
Chapter 20 Solutions
Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
Ch. 20 - Prob. 1SQCh. 20 - Prob. 2SQCh. 20 - Prob. 3SQCh. 20 - Prob. 4SQCh. 20 - __________ do not reproduce sexually. a....Ch. 20 - Prob. 6SQCh. 20 - Adapting to Host Defenses Surface proteins called...Ch. 20 - Prob. 2DAACh. 20 - Prob. 3DAACh. 20 - Adapting to Host Defenses Surface proteins called...
Ch. 20 - Prob. 7SQCh. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - Prob. 9SQCh. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - Prob. 11SQCh. 20 - Prob. 12SQCh. 20 - Which of these diseases is caused by bacteria? a....Ch. 20 - Prob. 14SQCh. 20 - Prob. 15SQCh. 20 - If a cut or scrape becomes infected,...Ch. 20 - The adenoviruses that cause colds do not have a...Ch. 20 - Prob. 3CTCh. 20 - Prob. 4CT
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- Which of the following statements is false? a. Plasmids can be exchanged between different species of bacteria. b. The blue circle represents a small chromosome. c. The blue circle is a plasmid that contains genes that confer resistance to specific antiobiotics. d. The blue circle represents a double-stranded molecule of DNA.arrow_forwardR factors are ________ that contain a code for ______________ .a. genes, replicationb. plasmids, drug resistancec. transposons, interferond. plasmids, conjugationarrow_forwardChoose the one answer that fits best. Which of the following statements regarding bacteria is NOT correct? a. During conjugation, two bacteria exchange genetic information directly via pili b. Bacterial populations have a higher mutation rate because their DNA Polymerases do not have proofreading capability c. Bacterial growth by binary fission is exponential and each division usually takes only a couple of hour or less d. Plasmids carry just a few genes and are replicated independently from the bacterial chromosome e. Cocci that are arranged in clusters/bunches are called staphylococciarrow_forward
- D. radiodurans can survive strong ionizing radiation (gamma radiation). What DNA repair process? a. Reverse transcription b. Translation c. Homologous recombination d. DNA replication e. Transcriptionarrow_forwardPlasmid vectors have the following characteristics, except _________ . a. MCS b. expression c. transfection d. single stranded e. cloningarrow_forwardA Ti plasmid carrying a foreign gene is inserted into which bacterium that infects a plant cell? a. Verticillium b. Arabidopsis thaliana c. Proteobacteria d. Agrobacterium tumefaciens e. Phytomyxeaarrow_forward
- Which of the following is defined as transformation? A. Transfer of genetic information via a plasmid B. Virus infects a host and deposits genetic material C. Free floating DNA is uptaken D. Transfer of genetic information from one bacterium to another 5.arrow_forward_________4. It is a bacterial that contains plasmid use to produce desirable proteins for human consumptions A. Bacillus thuringiensis B. E. coli C. Saccharomycetes cerevisiaearrow_forwardInfluenza 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_forward
- A small nonessential circular DNA molecule in prokaryotes is called a: a. plasmid b. telomere c. bacteriophage d. prophagearrow_forwardUsing one of the options below, finish the following statement so that it is correct. Plasmids are _________ a. extrachromosomal, circular molecules of RNA b. extrachromosomal, linear molecules of DNA c. None of these options are correct d. extrachromosomal, circular molecules of DNA e. extrachromosomal, linear molecules of RNAarrow_forwardA prophage replicates a. along with its host as long as the lytic genes are not being expressed b. along with its host as long as the lytic genes are being expressed c. independent of its host as long as the lytic genes are being expressed . d. independent of its host as long as the lytic genes are not being expressed .arrow_forward
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