What have experiments shown about the origin of life on Earth?

Many scientists favor the RNA world hypothesis, in which RNA, not DNA, was the first genetic molecule of life on Earth. Other ideas include the pre-RNA world hypothesis and the metabolism-first hypothesis. Organic compounds could have been delivered to early Earth by meteorites and other celestial objects.

Explanation:

answer; i believe that the correct answer is(d) nondisjunction during meiosis;