A bacterium can naturally uptake DNA from environment. This is because_ a. The bacterium contains transposons in its genomic DNA. O b. The bacterium contains tra genes in a plasmid DNA inside the cell. The bacterium contains a pro-phage in its genomic DNA. O d. The bacterium contains com genes in its genomic DNA.

A bacterium can naturally uptake DNA from environment. This is because_ a. The bacterium contains transposons in its genomic DNA. O b. The bacterium contains tra genes in a plasmid DNA inside the cell. The bacterium contains a pro-phage in its genomic DNA. O d. The bacterium contains com genes in its genomic DNA.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter17: Bacterial And Viral Genetics

Section: Chapter Questions

Problem 1TYK

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A bacterium can naturally uptake DNA from environment. This is because. The bacterium contains transposons in its genomic DNA. O b. The bacterium contains tra genes in a plasmid DNA inside the cell. С. The bacterium contains a pro-phage in its genomic DNA. O d. The bacterium contains com genes in its genomic DNA.
Q: Antibiotics are used in genetic engineering. They are useful to keep culture free of microbial a O infections O to select healthy vectors .b O to identify replication start sites.c O as selectable markers .d Q: Choose the best choice that describes the purpose of adding chloramphenicol to the culture of engineered bacteria O It inhabits the process of protein a synthesis O It blocks chromosome replication .b It blocks cell division .c It leads to increase the copy number of d recombinant molecules Q: Alkaline denaturation process is a kind of DNA isolation on the basis of conformation, that cause insolubility of cell components except one of the following Supercoiled DNA a Chromosomal DNA b Protein molecules c RNA molecules d All choices.e None of choices f Q: After transforming the ligation mixture into the E. coli, the transformed and non- transformed bacteria both can grow on media .containing antibiotics True a O False ..b
1/ Why is Thermus aquaticus so useful: O t is necessary for the mass production of bacteria containing a plasmid with an inserted gene O It is used in automated DNA sequencing O It facilitates the polymerase chain reaction O It is used to create recombinant plasmids
A bacterial cell receives a new gene contained on a plasmid exchanged through the formation of a sex pilus. This exchange of DNA would best be described as O Horizontal Gene Transfer Transduction Conjugation O Transformation
Please select all cellular processes that do NOT rely on RecA protein function as far as we considered them. bacteriophage lambda switch to lytic stage Lacl repression O LexA repression O natural transformation ODNA damage response O homologous recombination insertion of lambda phage into chromosome
Transfer of a donor chromosome fragment by a bacteriophage is defined as O Transduction O Budding O Conjugation O Transformation
The process of transferring DNA from one bacterium to another through a bacteriophage is called O conjugation O the lysogenic cycle O transformation O transduction O the lytic cycle 0|00
All are true for DNA polymerase EXCEPT: / Almal geld vir DNA-polimerase, BEHALWE: A. generates dsDNA from SSDNA / genereer dsDNA vanaf SSDNA B. requires a primer with a free 5'- OH end, but the 3'-end may be phosphorylated / benodig 'n voorvoerder met 'n vrye 5'-OH-groep, maar die 3'-einde kan gefosforileer word. C. copies the sequence of nucleotides of one strand in a complementary fashion. / kopieer die volgorde van nukleotiede van een streng komplementêr. D. synthesizes new strands by adding successive nucleotides in the 5'→3' direction. / sintetiseer nuwe stringe deur opeenvolgende nukleotiede in die 5 '→ 3' rigting toe te voeg. E. copies the sequence of nucleotides of one strand to form a new second strand. / kopieer die volgorde van nukleotiede van een
The process in which recipient bacterial cells acquire genes from cell-to-cell contact with other cells is called O Transposition Vaccination O Ligation Transduction O Conjugation O Transformation O Translation
Why are antibiotic resistance markers such as ampR important components of bacterial plasmid cloning vectors? a. The plasmid must have resistance to accept DNA inserts. b. They allow the detection of plasmids that contain an inserted DNA fragment. c. They ensure the presence of the ori site. d. They ensure that the plasmid can be cut by a restriction enzyme. e. They allow identification of bacteria that have taken up a plasmid.
n gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules _______. a. are from different organisms b. have different lengths c. have different nucleotide compositions d. have different genes
Which of the following is not correct for bacterial conjugation? a. Both Hfr and F+ bacteria have the ability to code for a sex pilus. b. After an F- cell has conjugated with an F+, its plasmid holds the F+ factor. c. The recipient cell is Hfr following conjugation. d. In an HfrF- conjugation, DNA of the main chromosomemoves to a recipient cell. e. Genes on the F factor encode proteins of the sex pilus.