A large meteorite recently crashed into earth. Some strange materials were found on the surface of the meteorite. what would you test or look for in the mysterious materials for signs of life

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.