What types of eugenics will be possible with
the use of genetic engineering?
a. super Olympic athletes
b. enhanced memory capacity
c. increased height
d. reduced incidence of baldness
e. all of these will be possible
E
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Botulinum toxin, or "botox", has become popular for cosmetic surgery. The toxin prevents neurosecretory vesicles from docking at the plasma membrane and releasing neurotransmitter. How would this toxin affect the neuromuscular junction?
A. Since ACh is not released, the muscles stay in a state of repeated contraction. B. Since ACh is not released, the muscles are not activated to contract and remain relaxed. C. Buildup of ACh causes promiscuous activation of all nearby sensory neurons. D. Buildup of ACh leaks back into the brain, creating a calming effect. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about the botulism? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Using tariffs to support diversification of a nation’s industrial structure
a. has little application to developing countries. b. is based on the need to protect high domestic wages. c. is based on the need to make the economy less vulnerable to demand fluctuations for its products. d. is designed to encourage specialization by the nation’s producers in just one or a few goods.
The population of American bison used to number in the millions. Hunting and other problems greatly decreased the number of bison to about 1,000. Today, the numbers are recovering to estimates of more than 200,000 bison. This crash in the population of bison and recent recovery is an example of ______
A. gene flow B. genetic drift C. the bottleneck effect D. the founder effect
What type of evidence for the theory of common descent would include the nonfunctional wings of an ostrich?
A) vestigial structures B) homologous structures C) shared developmental pathways D) DNA similarity