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:

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.