Which term describes the replacement of one base with another base in a dna sequence? a) point mutation b) frameshift mutation c) chromosomal mutation d) nondisjunction

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.

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

9. the history of life on earth is recorded in