Phage DNA- he Phage Infects bactertal coll Donor coll- (Infacted by a virus) that Is hes. Host DNA Is digostad Into fragmonts, and phago DNA and proteins are made. his Phagas assemble; occasionally a phago carrles a fragment of the host cell chromosome. In this casa, It carrles the hts gane Transduction in bacteria. Genes+Traits During transduction, a phage carries a segment of bacterial DNA from a donor to a recipient cell. In this case, the phage carried a segment of DNA with the his+ gene and transferred this gene to a recipient cell that was originally his- (unable to synthesize histidine). Following transduction, the recipient cell became his+, and thus able to synthesize histidine. Transducing phage with host DNA Transducing phage Injects Its DNA into a recipient cell that Racombination his- Raciplent coll- The transduced DNA Is recombined Into the chromosome of the reciplent cell. his Recombinant bacterium The racombinant bacterium's genotype has changed from his- to his".
Phage DNA- he Phage Infects bactertal coll Donor coll- (Infacted by a virus) that Is hes. Host DNA Is digostad Into fragmonts, and phago DNA and proteins are made. his Phagas assemble; occasionally a phago carrles a fragment of the host cell chromosome. In this casa, It carrles the hts gane Transduction in bacteria. Genes+Traits During transduction, a phage carries a segment of bacterial DNA from a donor to a recipient cell. In this case, the phage carried a segment of DNA with the his+ gene and transferred this gene to a recipient cell that was originally his- (unable to synthesize histidine). Following transduction, the recipient cell became his+, and thus able to synthesize histidine. Transducing phage with host DNA Transducing phage Injects Its DNA into a recipient cell that Racombination his- Raciplent coll- The transduced DNA Is recombined Into the chromosome of the reciplent cell. his Recombinant bacterium The racombinant bacterium's genotype has changed from his- to his".
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Genetic Recombination
Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.
Microbial Genetics
Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.
Question
Transduction is sometimes described as a mistake in the bacteriophage reproductive cycle. Explain how it can be viewed as a mistake?
Transcribed Image Text:Phage DNA-
he
Phage Infects
bactertal coll
Donor coll-
(Infacted
by a virus)
that Is hes.
Host DNA Is digostad
Into fragmonts, and phago
DNA and proteins are
made.
his
Phagas assemble;
occasionally a phago
carrles a fragment of
the host cell chromosome.
In this casa, It carrles the
hts gane
Transduction in bacteria. Genes+Traits During transduction,
a phage carries a segment of bacterial DNA from a donor to
a recipient cell. In this case, the phage carried a segment
of DNA with the his+ gene and transferred this gene to a
recipient cell that was originally his- (unable to synthesize
histidine). Following transduction, the recipient cell
became his+, and thus able to synthesize histidine.
Transducing
phage with
host DNA
Transducing phage
Injects Its DNA into
a recipient cell that
Racombination
his-
Raciplent coll-
The transduced DNA
Is recombined Into the
chromosome of the
reciplent cell.
his
Recombinant
bacterium
The racombinant bacterium's genotype has
changed from his- to his".
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