Consider Avery, MacLeod, and McCarty’s experiment. If they had determined that t

Question

Consider Avery, MacLeod, and McCarty’s experiment. If they had determined that thetransforming molecule was protein, what experimental results would have been observed?

a. Heat-killed cultures treated with DNase would not have transformed the R cells.

b. Heat-killed cultures treated with DNase would have transformed the R cells.

c. Heat-killed cultures treated with protease would not have transformed the R cells.

d. Heat-killed cultures treated with protease would have transformed the R cells.

e. Heat-killed cultures treated with RNase would not have transformed the R cells.

f. Heat-killed cultures treated with RNase would have transformed with R cells.

Explanation / Answer

If Avery, MacLeod, and McCarty’s experiment had determined that the transforming molecule was protein then results would be:

Heat-killed cultures treated with protease would have transformed the R cells.
So answer is C

Addition of Proteases like Trypsin and Chymotrypsin affect the transformation showing that the transforming principle was not a protein.

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