What is a nondisjunction? what is a nondisjunction? an error in which a diploid cell or organism has an extra chromosome of one type, producing a chromosome number of 2n + 1 none of the above an error in which a diploid cell or organism lacks a chromosome of one type, producing a chromosome number of 2n - 1 an error in cell division that causes homologous chromosomes or sister chromatids to move to t?

answer; the above answer to the above statement is (true)

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