you heat kill "virulent" type iiis pneumococcus, homogenize this mixture and then treat it with rnase. next, you incubate this mixture with "avirulent" type iir pneumococcus and then inject the bacteria into live mice. do you expect the mice to get sick? why or why not?

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12-10-2022
Biology

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you heat kill "virulent" type iiis pneumococcus, homogenize this mixture and then treat it with rnase. next, you incubate this mixture with "avirulent" type iir pneumococcus and then inject the bacteria into live mice. do you expect the mice to get sick? why or why not?

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kumarprabhat kumarprabhat · Answer 1 · 2022-10-18T16:21:12+02:00

Pneumococcus of type IIIS (virulent) is killed by heating the mixture, which is subsequently homogenized and the bacteria are subsequently injected into living mice.

When the IIIS bacteria are treated with DNase and heated to death. DNA will then breakdown as a result of DNase. The living IIR bacteria cannot undergo any changes or transformations as a result of this DNA. Mice won't perish. Because DNA is the transforming principle and the DNase degrades DNA, this occurs. DNA is responsible for turning virulent organisms into non-virulent ones.

Any infection brought on by the pneumococcus, also known as Streptococcus pneumoniae, is known as pneumococcal disease (noo-muh-KOK-uhl). Ear, sinus, and bloodstream infections can all be caused by pneumococcal infections, as well as pneumonia.

Of healthy individuals, 5 to 90% may have the bacteria in their nasopharynx.

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