Creating a transgenic organism
A. is the result of deleting DNA from specific genes of anorganism.
B. is a form of natural selection.
C. is the result of adding DNA to an organism from anotherspecies.
D. happens spontaneously.
E. benefits all organisms.
How are artificial selection and naturalselection similar?
A. Both require human intervention.
B. Both work to create a new species.
C. Both select for a specific trait(s) within a population.
D. Both processes only affect animals.
E. All of the above are correct.
Most commercial insecticides are effective for only a few years.This is because:
A. not enough is used.
B. natural selection for insecticide resistance occurs.
C. of artificial selection by farmers.
D. of genetic engineering creating new insects.
E. None of the above is correct.
Traits controlled by X-linked recessive genes appear more oftenin males than in females because:
A. the male inherits X-linked genes from his father.
B. the male inherits Y-linked genes from his mother.
C. the male needs only one copy of the gene for the trait toappear in his phenotype.
D. the male inherits more copies of the gene than does afemale.
E. the male needs two copies of the gene for the trait to appearin his phenotype.
