Pls help in what you can, i need it

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.

How is transcription similar to translation in terms of base pairing?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes