Refer to the study by Poulsen et al. and the figure above. The data graphed in the figure could be an artifact if latrunculin A kills this species of diatoms (that is, that may be why the cells are not moving)
Which of the following would be the best evidence that latrunculin A is NOT killing the cells?
A) When the toxin was washed off the culture, the cells began to move again.
B) There were still a small percentage of motile cells in the culture treated with the toxin.
C) Most of the cells in the control were moving, indicating that they were alive.
D) When the toxin was applied to another species of diatom, 25% of them continued to move.
Answer: A
You might also like to view...
Atoms that gain or lose electrons become charged particles called ________.
A. cations B. anions C. isotopes D. ions
Heterozygotes for the sickle cell trait have an adaptive advantage in areas where malaria is prevalent. This is an
example of ____.
a. a fixed allele b. genetic drift c. a balanced polymorphism d. sexual selection e. disruptive selection
Proteins produced by the innate immune response to fight virus infection are (complement/interferons/opsonins).
Fill in the blank(s) with the appropriate word(s).
Conidia are sexual spores produced by mushrooms.
Answer the following statement true (T) or false (F)