A cloned mammal is made by a similar technique as the one us…

A cloned mammal is made by a similar technique as the one used to produce transgenic animals, except the entire genome is replaced instead of a single gene. This is accomplished by removing the DNA from the unfertilized egg of an egg donor, replacing it with DNA from a normal body cell of a mature animal, and then implanting that cell into the uterus of a surrogate mother. The cell then divides and behaves as if it were a normal embryo. Answer the following questions regarding a clone.Of whom is the baby a clone?

Photosynthesis is the primary chemical reaction that creates…

Photosynthesis is the primary chemical reaction that creates the oxygen found on the earth. Some prokaryotic organisms and some eukaryotic organisms can produce oxygen through photosynthesis. While all eukaryotic cells and many prokaryotic cells also require oxygen, there are many prokaryotic cells that do not. What then created the oxygen in the earth’s atmosphere that allowed the earliest eukaryotic organisms to evolve?