Introns in genes are:
A) coding portions of the genome.
B) regions where the RNA polymerase binds.
C) redundant codons.
D) regulatory regions of the genome.
E) base sequences not required to make the protein.
Answer: E
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Which of the following best describes the Green Revolution?
A. the use of modern technology to increase crop production B. the use of more ecologically friendly agricultural pesticides C. the industrial production of phosphate fertilizers D. the use of more sustainable agricultural techniques E. All of the answer options are correct.
What is the most likely explanation for the Florida panthers’ poor health?
A. The panthers are unable to find food, so they are starving to death. B. Environmental pollutants are poisoning the panthers. C. The panthers are inbreeding, so recessive genetic mutations are becoming common. D. The panthers are forced to live in close proximity to each other, causing a prevalence of communicable disease. E. Environmental pollutants are causing genetic mutations in their DNA.
Resource partitioning can often be seen in similar species that occupy the same geographic area. These species avoid competition by living in different portions of the habitat or by utilizing different food or other resources and are called ____________ species.
A. sympatric B. allopatric C. competitive D. fundamental E. exploitative
Reproductive cloning of human embryos is generally considered unethical. However, on the subject of therapeutic cloning there is a wider divergence of opinion. Which of the following is a likely explanation?
A) The use of adult stem cells is likely to produce more cell types than the use of embryonic stem cells. B) Cloning to produce embryonic stem cells may lead to great medical benefits for many. C) Cloning to produce stem cells relies on a different initial procedure than reproductive cloning. D) A clone that lives until the blastocyst stage does not yet have human DNA.