Which situation allows for evolution during gene duplicate?
a. a mutation occurs in one copy of the original gene
b the original gene performs the same role as the mutated gene
c the original gene never duplicates
d. existing genes. are copied over generations

What effect does plate tectonics have an organic evolution

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.

The body of water found at number 4 on the map above is the