Which of the following is a benefit of genetic engineering?

genetically engineered organisms are often sterile.
genetically engineered proteins can fight disease.
recombinant dna can create gene combinations never seen in nature.
genetic abnormalities can be used for job discrimination.

which of the following is a disadvantage of hybridization?

offspring are genetic copies of the parent
offspring are stronger and larger than the parents
offspring often have health problems and are sterile
offspring have a combination of traits from both parents