Griffith's experiment worked with two types of pneumococcal bacteria (a rough type and a smooth type) and identified that a "transforming principle" could transform them from one type to another.
At first, bacteriologists suspected the transforming factor was a protein. The "transforming principle" could be precipitated with alcohol, which showed that it was not a carbohydrate. But Avery and McCarty observed that proteases (enzymes that degrade proteins) did not destroy the transforming principle. Neither did lipases (enzymes that digest lipids). Later they found that the transforming substance was made of nucleic acids but ribonuclease (which digests RNA) did not inactivate the substance. By this method, they were able to obtain small amounts of highly purified transforming principle, which they could then analyze through other tests to determine its identity, which corresponded to DNA.
Answer:
The study of internal structures is called anatomy forexample to study the internal structure of heart
Explanation:
The carrying capacity of a biological organism in the surrounding refers to the maximum size of the population of the organism that the environment can maintain indeterminately, given the habitat, food, water, and other essential requirements in the environment.
When a deep water island of marine debris is situated directly in the migratory path of a pod of humpback whales, then the carrying capacity for the region would be negotiated and the populations of whale will suffer.
True because they grow the same may..Their cell mature the same way
Answer:
Explanation:what do you mean?
