Biology, 02.03.2020 17:51, aksatx4035
You isolate an infectious substance that is capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. You have four methods at your disposal that you can use to analyze the substance in order to determine the nature of the infectious agent.
I. treating the substance with nucleases that destroy all nucleic acids and then determining whether it is still infectious
II. filtering the substance to remove all elements smaller than what can be easily seen under a light microscope
III. culturing the substance by itself on nutritive medium, away from any plant cells
IV. treating the sample with proteases that digest all proteins and then determining whether it is still infectious
Which treatment could definitively determine whether or not the component is a viroid?
A) I
B) II
C) III
D) IV
E) first II and then III
Answers: 3
Biology, 21.06.2019 15:00, livmoney8905
Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?
Answers: 1
Biology, 21.06.2019 23:00, tommyaberman
Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution
Answers: 1
Biology, 22.06.2019 23:50, brianwins07
When a plant is genetically identical to its parent plant what is this called
Answers: 1
You isolate an infectious substance that is capable of causing disease in plants, but you do not kno...
Social Studies, 27.06.2020 09:01
Mathematics, 27.06.2020 15:01