Not if you believe in panspermia. | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

seiferteric on March 23, 2018 | parent | context | favorite | on: Genetic analysis of tiny mummified skeleton from t...

Not if you believe in panspermia.

vadimberman on March 23, 2018 [–]

It depends on the kind of panspermia.

If it's about generic organic molecules then the DNA is a local construct. If it's about microorganisms, then it's different.

seiferteric on March 23, 2018 | [–]

True. It's also possible that DNA is the only form of life that really works, but we just don't know yet.

lovemenot on March 23, 2018 | | [–]

There's 6-base pair organisms now. https://www.sciencealert.com/new-organisms-have-been-formed-...

Also, RNA seems to work and it's possible we started out using RNA and later evolved to DNA.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact