Which of the following problems with animal cloning might result in premature death of the clones?
A) use of pluripotent instead of totipotent stem cells
B) use of nuclear DNA as well as mtDNA
C) abnormal gene regulation due to variant methylation
D) the indefinite replication of totipotent stem cells
C
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Which of the following is not a correct pairing of tooth type and function?
A. incisors: piercing B. canines: ripping and tearing C. premolars: shearing D. molars: grinding E. All of the answer options are correct pairings.
Which of the following animals would you predict would have the highest mass-specific metabolic rate?
A. a lizard B. a squid C. an elephant D. a goose E. a hummingbird
Rapid turgor pressure changes in specialized multicellular swellings called ____________ are associated with leaves that move in response to touch or light.
A. petioles B. pulvini C. stipules D. pudicas E. coleoptiles
A technique used in dating a rock can be used to accurately predict the age of the fossils occurring in the rocks. This technique involves
A. radioactive isotope decay. B. successive rock layering. C. developmental geology. D. fossil dating. E. structural geology.