An intercalating agent such as aflatoxin is more likely to cause which type of mutation?
A) transition
B) transversion
C) frameshift
D) depurination
E) deamination
C
You might also like to view...
Neuron ______ below is a motor neuron; its function is ____________
A. 1; connecting different types of neurons B. 2; receiving incoming information or "sensing" C. 2; stimulate muscles or glands D. 3; stimulate muscles or glands E. 3; connecting different types of neurons
You have made a smear of a bacterial culture and have performed the Gram stain on it. Looking at the organism under the microscope, you notice that the cells do not seem to be the dark blue-purple of a gram-positive reaction, but instead are light purple. Your staining procedure was performed correctly. What is your best explanation as to why the bacteria have stained this way?
A. The specimen did not undergo heat fixation before staining; therefore, the primary dye does not stick properly to the wall. B. These are mutant bacteria which cannot be stained like other bacteria. C. The bacteria were taken from an inappropriate medium, and a chemical is interfering with proper staining of the cells. D. There is something in the wall of the bacteria that has affected the uptake of the crystal violet into the cell wall, thereby staining it improperly.
A mycelium is best defined as a(n) ____
a. mushroom b. mass of hyphae c. association between a fungus and a plant root d. reproductive structure of a fungus e. fungal cell
Which disease has an allergic cause?
Select one: a. otitis media b. laryngitis c. asthma d. pneumonia e. emphysema