Genetic engineering has been used to
a. induce bacteria to mass-produce human insulin.
b. produce a vaccine against hoof-and-mouth disease.
c. create mice with altered genomes so we can model certain human diseases.
d. create plants that are more resistant to certain pests or herbicides.
e. all of these
E
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Any process in which a signal from one individual modifies the behavior of a recipient individual is termed _____
A) cognition B) communication C) reflex D) perception E) conditioning
You have started your experiment with two populations that are genetically identical. What process will introduce genetic variation into these populations? Will identical genetic changes occur in each flask?
What will be an ideal response?
Which adaptation is constrained by the particular ancestral structure of the organism, resulting in a jury-rigged design?
A) antibiotic resistance in bacteria B) anatomy that allows upright posture in humans C) the wings of bats D) ethanol tolerance in fruit flies
In the Sonoran desert, a species of cactus pollinated by hawkmoths closes its flowers at dawn (and reopens them at dusk). Propose a possible proximate and ultimate explanation for this.
What will be an ideal response?