Answer:
proteins; purify; expression
Explanation:
One of the products of recombinant DNA technology is antibiotics. To have penicillin, we used to have to breed fungus that produces the drugs. With recombinant DNA technology, you can extract the DNA that needed to produce penicillin, then put it into a bacteria using an expression vector. This technology will allow us to produce a specific protein (whether its enzyme, hormone, or anything) easier.
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You stuck?
Humans use selective breeding to pass desired TRAITS on to the next generation of organisms.
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B) Determining the absolute ages of the rock
Answer: Cancer cells do not respond to these signals.
Explanation: Cell repair and cell death—Normal cells are either repaired or die (undergo apoptosis) when they are damaged or get old. Cancer cells are either not repaired or do not undergo apoptosis.
The answer is B, since the population has no genetic variation it will be classified as an artificial selection not a natural selection.