Proteins can - primary secondary tertoary and quaternary structures.
Answer:
Stem cells cut and repair their own DNA to promote formation of new tissues.
Explanation:
Stem cells cut itself and then repair their own DNA as a mechanism of activating genes that promote the development of new tissues. Stem cells are special type of cells that the ability to develop into many different types of cell such as muscle cells, brain cells etc. These cells are also capable to repair damaged tissues in the body.
Answer:
As statements are not provided, let's have a look at scientific knowledge generally.
Explanation:
A piece of scientific knowledge will be considered to be true and authentic if it is supported by a number of testable experiments which gave the same supporting result again and again. Experiments performed by such scientists will be viable and will contribute to the current body of scientific knowledge.
On the other hand, scientific knowledge that is not supported by experiments that are correct will not be of much importance.
