World's Annihilation: The Joint Cell (Coming Soon)

In the winter of the year 2020, the soldiers of the Alpha Government who reigns all over the world found a mysterious blood-colored ball, smaller than a basketball ball's size. The scientists were curious about this unidentified thing so they forced to open it. Inside, they found two floating balls---cells in the middle. When the scientists tried to touch the mysterious objects, it moved towards each other and became one. No other movements were recorded. The scientists were excited about this unknown objects. They transferred it to a sealed container and left it for a week. When the scientists came back, the Joint Cells had gone bigger and broke the sealed container. Once again mesmerized, they forced to open and seperate the Joint Cell into two, the government's biggest mistake. The Joint Cell did split into two but then exploded like a nuclear weapon, leaving the capital of Eriia deserted with no signs of human beings. The scientists thought the unknown cell was gone after they disinfected the place, but they were wrong. The two split cells grew by themselves far away from each other and one cell evolved like a normal human baby on it's own while the other, took place inside a woman's womb implanting itself inside.

Now, what will happen to the cells?