In the transformation experiment by Griffith, two strains of an organism was injected into a mouse model. One, he labelled S was a heat-killed but pathogenic strain while the other, R was a non- virulent or non-pathogenic strain. Within 48 hours, the mouse died and only the S strain was obtained from the dead mouse. What conclusions can you derived from this experiment? A. Some of the pathogenic S strains survived, proliferated and subsequently overpowered the R strain. B. The R strains mutated and were converted to a pathogenic S strain. C. The R strains assimilated the DNA from the S strain and were transformed into the S strain. D. The R strain DNA hybridized with the S strain DNA such that the daughter DNA of the new generation of R all contained the S DNA. E. All of these conclusions are possible.
In the transformation experiment by Griffith, two strains of an organism was injected into a mouse model. One, he labelled S was a heat-killed but pathogenic strain while the other, R was a non- virulent or non-pathogenic strain. Within 48 hours, the mouse died and only the S strain was obtained from the dead mouse. What conclusions can you derived from this experiment? A. Some of the pathogenic S strains survived, proliferated and subsequently overpowered the R strain. B. The R strains mutated and were converted to a pathogenic S strain. C. The R strains assimilated the DNA from the S strain and were transformed into the S strain. D. The R strain DNA hybridized with the S strain DNA such that the daughter DNA of the new generation of R all contained the S DNA. E. All of these conclusions are possible.
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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In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
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The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
Question
Transcribed Image Text:In the transformation experiment by Griffith, two
strains of an organism was injected into a mouse
model. One, he labelled S was a heat-killed but
pathogenic strain while the other, R was a non-
virulent or non-pathogenic strain. Within 48 hours,
the mouse died and only the S strain was obtained
from the dead mouse. What conclusions can you
derived from this experiment?
A. Some of the pathogenic S strains survived,
proliferated and subsequently overpowered the R strain.
B. The R strains mutated and were converted to a
pathogenic S strain.
C. The R strains assimilated the DNA from the S strain
and were transformed into the S strain.
D. The R strain DNA hybridized with the S strain DNA
such that the daughter DNA of the new generation of R
all contained the S DNA.
E. All of these conclusions are possible.
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