Since the early 1990s, geneticists have produced ____ crops that yield fruits and vegetables commonly found in U.S. supermarkets.(1 point)
Responses
large harvest
large harvest
genetically modified
genetically modified
mutationally induced
mutationally induced
transgenically reduced
genetically modified
Cotton is one crop that is often damaged by a pest insect species. A research program is planned to genetically modify the plants to keep insect damage to a minimum. The aim of the research is to make the plants release a protein that can kill the insects.
Why might people be opposed to this research program?(1 point)
Responses
The insect species will soon spread to other areas.
The insect species will soon spread to other areas.
The modified plants will cause a waste of natural resources.
The modified plants will cause a waste of natural resources.
The insects may be the natural food of several species of birds.
The insects may be the natural food of several species of birds.
The sales of pesticides will decrease where the modified plants are grown.
The insects may be the natural food of several species of birds.
Suppose farmers want to create a new form of potato that is more nutritious than the kind sold in stores today. These farmers would MOST LIKELY choose(1 point)
Responses
one nutritious species of potato to breed.
one nutritious species of potato to breed.
two nutritious species of potatoes to breed.
two nutritious species of potatoes to breed.
three potato species with different nutrition levels to breed.
three potato species with different nutrition levels to breed.
one nutritious and one non-nutritious species of potato to breed.
two nutritious species of potatoes to breed.
Suppose orange beetles and green beetles live in the same environment. Green beetles are harder to see on leaves, so birds eat primarily orange beetles. According to the theory of natural selection, in the future orange beetles will(1 point)
Responses
move to a place without green beetles.
move to a place without green beetles.
decrease in population until they possibly become extinct.
decrease in population until they possibly become extinct.
reproduce to their full potential until they increase in number.
reproduce to their full potential until they increase in number.
breed with green beetles until there are no longer orange beetles.