Answer:
it is a and d thanks and sorry if it's not correct
Hello!
The primary advantage of multiple researchers obtaining the same result is the conclusion is likely to be more credible when they are independently verified. As the work done by them gives the same result, it can be easier to believe.
The presence of the base peak at 45 in combination with our knowledge about the nitrogen rule suggests that the peak at m/z 60 is likely the molecular ion because even molecular ions usually produce odd molecular fragments by breaking single bonds.
an adjective describing the species
Answer:
Some substance in the infectious S strain could change the harmless R strain into the more lethal form.
Explanation:
These first type of experiments where crucial to advance in DNA knowledge.
In one experiment, they treated the material with enzymes that destroy all proteins. This is important because scientist notice that there was something else that was causing the strain to change into a lethal form and was heritable (DNA). Know a days we know that plasmids are responsible for such transformation.
