Avery, macleod, and mccarty (1944) demonstrated that dna was the genetic material by treating heat-killed streptococcus pneumoniae s (smooth) strain with dnase, thereby preventing transfer of the "transforming substance" from the killed s strain to the live r (rough) strain when the two were mixed together and injected into mice. another way that one could demonstrate transformation in bacteria would be to extract dna from:

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.