Hai noroc deluta sa te iau in sphada
Answer:
Only the extracts from heat-killed cells treated with RNase are unable to transform nonvirulent bacteria into virulent bacteria.
Explanation:
The experiment by Avery, McCarty and MacLeod aimed to identify Griffith's "transforming principle," which is a principle that explains how transformation is a way of recombining, exchanging, or transferring genetic information between organisms or from one organism to another. For this, they used cell that were heat inactivated and purified the transforming principle of these cells.
The purified cells did not give positive results in the tests done by the scientists, but they presented transformants very similar to the DNA. However, Avery suspected that the result should be reinterpreted and that the molecule was not a DNA. This is because RNA degrading enzymes had no effect on the transforming principle and only RNase-treated heat-killed cell extracts are unable to transform non-virulent bacteria into virulent bacteria.
They are able to use imperatives and interrogatives.
They frequently use the auxiliary verb "have" in statements.
Answer:
personality deepth
Explanation:
in order to study peraonallity we need to use rule 5 as estem,awareness and worth
1. neurons
2. muscle cells
3. red blood cells
4. sperm cells
5. leukocyte
im not 100% sure but i hope this helps :)
