Avery's experiments showed that bacteria are transformed by “transforming principle” – DNA.
When Griffit in his experiments showed that R-strain bacteria (non-virulent) could be transformed by the heat-killed S bacteria, and become virulent, scientists assumed that there is some kind of “transforming principle” that is involved.
Avery and his colleagues cultured heat-killed S cells and tried t separate cellular components that could possibly be that “transforming principle”. Molecule of DNA gave positive result in a chemical test and also when enzymes able to degrade DNA were introduced, the transforming activity was eliminated.
b produce and manage movement
Explanation:
nerve cells are there to move muscles, send signals to glands, or register sensory stimuli.
Most likely true because for all living things, their DNA is constantly mutating to keep itself alive in a certain environment,
MRNA is RNA that carries info from DNA to the ribosome. The mRNA is initially transcribed from the corresponding DNA sequence and then translated into protein. That is the best answer I have sorry that I can't help further!
