Imagine that you want all of the orange trees in your orchard to uniformly flower and set fruit. Which
type of plant hormone should you spray on your plants?
a. brassinosteroids
b. auxins
c. ethylene
d. salicylic acid
e. cytokinins
B
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What would be the effect on phloem transport of a mutation in the sucrose transport protein that caused ATP to not bind efficiently?
A. There would be no effect. B. Water diffusion into the phloem would increase. C. Turgor pressure would be reduced. D. The direction of the flow of sap would be reversed.
Species of show the greatest diversity in the Cenozoic era
a. birds b. trilobites c. reptiles d. insects
Which of these syndromes afflicts mostly males?
A) Turner syndrome B) Down syndrome C) Duchenne muscular dystrophy D) cri du chat syndrome E) chronic myelogenous leukemia
The mechanisms that reoviruses have evolved to evade the host immune system include ALL of the following EXCEPT
a. capping and methylation of virus mRNAs by viral enzymes. b. genome replication within the nucleocapsid. c. the use of host nucleotides for RNA synthesis. d. denaturing of proteolytic enzymes in host lysosomes.