100 points Using PCR it is possible to introduce both random and site-specific mutations into a DNA sequence.
True or False?
I think it is true because PCR’s can introduce random mutations when creating point mutations

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers