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:
Saturated fats contain only single carbon bonds in the carbon chain
Explanation:
Natural aging.
Natural aging is process in which organism's body organs and functions deteriorate and finally fail to work at all
The theory of evolution look it up and thats where you will get your anwser
Answer:
elliptical, spiral and irregular and elliptical are the oldest
Explanation:
