Explain the idea of transgenic animals as "bioreactors."
What will be an ideal response?
The biotechnology product is made in the milk or eggs of the animal. For this to occur,
the gene that produces the product of interest is inserted into the organism via transgenic
techniques, and then the animal is raised to adulthood. The product is engineered to be isolated
from the animal's milk or eggs, thus causing no harm to the animal.
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Which two of the following have operated to increase divergence between mosquitofish populations on Andros? 1. improved gene flow 2. bottleneck effect 3. sexual selection 4. founder effect 5. natural selection
A) 1 and 3 B) 2 and 3 C) 2 and 4 D) 3 and 4 E) 3 and 5
The Greek word oikos means
(a) environment. (b) habitat. (c) house. (d) community.
At present, the most accurate indicator of evolutionary relatedness among organisms is the
A. size of the periplasmic space. B. sequence of the ribosomal small subunit RNA. C. size of the bacterial chromosome. D. similarities of cell membrane proteins. E. size of the ribosomes.
Courtship displays, aggressive displays, and distraction displays are all examples of which of the following?
a. pheromones b. language c. signals d. vocalizations