The primary reason why certain trees tend to grow straight and tall with few lateral branches when compared with other trees is because:
A. of unknown reasons
B. Lateral buds are missing in many of these trees
C. Lateral bud development is dependent on temperature
D. Gibberellins affect the buds detrimentally
E. Auxins inhibit lateral bud development
E. Auxins inhibit lateral bud development
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The coat color of calico cats is a result of _____
A. maternal inheritance B. X-inactivation C. imprinting D. extranuclear inheritance
On a global scale, the most significant type of malnutrition is ________
A) vitamin A deficiency B) calcium deficiency C) iron deficiency D) protein deficiency
Acetylcholinesterase is the enzyme that degrades acetylcholine. What effect on nerve transmission would occur following the administration of a chemical that inhibited acetylcholinesterase?
A) Continuous excitatory postsynaptic potentials would occur in the postsynaptic neuron. B) The presynaptic neuron would be inactivated. C) It would be identical to giving an anesthetic, but it would last permanently. D) Synaptic transmission would be prevented; muscle paralysis would occur. E) There would be no effect.
Which of the following contain enzymes used in the breakdown of glucose and generation of ATP?
a. Endoplasmic reticula b. Mitochondria c. Golgi bodies d. Lysosomes e. Ribosomes