Frederick griffith infected mice with a combination of dead r and live s bacterial strains. what was the outcome, and why did it occur?
the mice will live. transformation was not required.
the mice will die. transformation of genetic material from r to s was required.
the mice will live. transformation of genetic material from s to r was required.
the mice will die. transformation was not required.

The correct answer will be option-The mice will die. Transformation of genetic material from R to S was required.

Explanation:

Frederick Griffith performed an experiment on the mouse using two strains of the Streptococcus pneumonia which are R (rough avirulent strain) and S (smooth-virulent strain).

In the experiment when he injected the live S bacteria with dead R bacteria, the mice died, opposite of the expected result that mice would not die. This amazed Griffith and he concluded that some transformation of the bacteria has happened due to which the mice died. The R bacteria became S bacteria (virulent) due to the transformation which was proved later that the bacteria took the DNA of the dead S bacteria from the surrounding.

Thus, the selected option is the correct answer.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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