Genes in their natural state cannot be patented. This policy allows research and use of natural products for the common good. What argument might be presented in favor of patenting genes or gene products?
What will be an ideal response?
Limiting the patenting of genes or genetic tools could reduce the incentive for research that produces especially useful products. Investors might be reluctant to support speculative research if the products of that research are free to the public.
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Eric was working very hard in the dry, hot boiler room and sweating a lot. Under these conditions, which of the following might Eric be experiencing?
A) He has decreased hydrocortisone. B) He has increased oxytocin. C) He has increased antidiuretic hormone. D) He has decreased thyroxine.
A small number of species that are abundant in a given community are called:
A) community species. B) ecological dominants. C) keystone species. D) dominant species.
Which of the following is incorrect about HIV?
A. It uses reverse transcriptase to produce a DNA copy of its RNA. B. It only needs a CD4 receptor on a cell in order to infect it. C. It is related to a chimpanzee virus. D. It leaves a cell by budding from it. E. It takes about 8 to 10 years for it to cause symptoms.
The surface area of a plant's root system is substantially larger than the surface area of its shoot system. The extensive surface area of roots is an adaptation associated with _____
A) contact with soil particles for mineral and water absorption B) the internal structure of the vascular tissue in roots C) the storage of nutrients within the root system D) the release of carbon dioxide generated by photosynthesis