Genes are portions of DNA and they have the ability to

Look at the photo of the leaf. which term best describes this leaf?

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.

9. the history of life on earth is recorded in