The answer is, different versions of the same gene are called alleles
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.
As the name says the goal of the descriptive investigation is to describe.
This type of investigation has no hypothesis, but only a question. With this type of investigation Tyler will be able to observe all types of insects and study the insects in many various aspects and provides a bigger overview, because it uses both quantitative<span> and qualitative data.</span>
One strand runs in the 5 to 3 and the other in the 3 to 5
cell wall and chloroplasts
