How could you test whether the transforming ability of a cell extract was due to DNA or RNA?
What will be an ideal response?
You could treat the extract with a DNase or RNase enzyme and test whether its transforming ability was intact.
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plasma membrane
A. a feature of all cells B. found in prokaryotic cells only C. found in eukaryotic cells only D. found in plant cells only E. found in animal cells only
The end result of meiosis is
What will be an ideal response?
Which of the following nitrogenous bases is NOT normally found in DNA?
a. thymine b. cytosine c. adenine d. uracil e. guanine
Bateson and Punnett crossed two white-flowered lines and saw all purple flowers in the F1 generation. They concluded this was an example of complementary gene interactions because a cross of the F1 plants yielded what ratio in the F2 generation?
A) 8 purple to 8 white B) 16 purple to 0 white C) 0 white to 16 purple D) 7 purple to 9 white E) 9 purple to 7 white