Question

Could a varying, self-replicating population of RNA molecules be considered alive?

1) No, because such a population would not be contained inside a cell.

2) Yes, because such a population would show variation, inheritance, and selection.

3) No, because RNA molecules are not subject to selection.

4) Yes, because RNAs code for proteins that can then replicate the RNAs.


5) no, because ribonucleotides are not suited for energy transfer functions

Answer 1

Yes, a varying, self-replicating population of RNA molecules could be considered alive because they exhibit variation, inheritance, and selection. RNA molecules can code for proteins and replicate themselves, supporting their potential for life. The RNA world hypothesis suggests that RNA may have been the first organic molecule to evolve.

Step-by-step explanation:

Yes, a varying, self-replicating population of RNA molecules could be considered alive. This is because they exhibit variation, inheritance, and selection, which are key attributes of life. While such a population may not be contained inside a cell, it can still undergo natural selection and evolve over time. RNA molecules can code for proteins that can then replicate the RNAs, further supporting their potential for life. The RNA world hypothesis suggests that RNA may have been the first organic molecule to evolve, and some scientists argue that early life was based solely on RNA, with DNA and proteins evolving later.