Which of the following are potential problems with Genetically Modified (GM) crops and food?
a) Crops carrying genes from other species might harm the environment.
b) GM foods could be hazardous to human health.
c) Transgenic plants might pass their genes to close relatives in nearby wild areas.
d) all of the above
e) none of the above
Answer: d) all of the above
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The _____ and _____ are unique among vertebrates (or craniates) in that they lack jaws
A. hagfish; lampreys B. hagfish; cephalochordates C. cephalochordates; lampreys D. lampreys; cartilaginous fish E. none of these
Varieties produced under domestication via artificial selection most generally have traits that ________
A) would continue to be perpetuated in the wild as well as, or better than, those produced by natural selection B) are based only on variations that already exist in populations C) are based only on new mutations that have arisen recently in domesticated varieties D) are not typically well adapted in a wild setting
Organisms belonging to the kingdom Plantae
A) are photosynthetic. B) obtain food by decomposing the remains of dead organisms and absorbing the nutrients. C) are unicellular.
A plant mutant that shows normal gravitropic bending but does not store starch in its plastids would require a reevaluation of the role of _____ in gravitropism
A) auxin B) calcium C) statoliths D) light E) differential growth