What is biotechnology?
A) use of technology to isolate and purify cell membrane proteins
B) use of biologically based machines to harvest crops
C) use of enzymes in manufacturing
D) use of technology to isolate and modify biological molecules to achieve practical benefits
E) use of technology to regulate gene expression and treat diseases that result from over-expression
D) use of technology to isolate and modify biological molecules to achieve practical benefits
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How does the blister rust impact the Yellowstone ecosystem?
a. It reduces the availability of whitebark berries. b. It reduces the numbers of grizzly bears. c. It reduces the numbers of gray wolves. d. all of these
Becoming infected by a disease from a mosquito bite is an example of ____
a. direct contact b. indirect contact c. inhalation infection d. contact with a transmitting vector e. retro-contact
The tetrapods include:a
fish, amphibians, reptiles, and mammals. b. lancelets, cartilage, and bony fish. c. amphibians and reptiles. d. amphibians, reptiles, birds, and mammals. e. echinoderms and chordates.
A ribozyme is a molecule of RNA that has catalytic properties.
a. true b. false