Can DNA bases be produced during molecular cloud collapse?

Details Can DNA bases be produced during molecular cloud collapse? Can DNA bases be produced during molecular cloud collapse?

2000-01-06

arxiv.org/abs/astro-ph/0001079v1

Astronomy and Astrophysics

Astrophysics

4 pages including Figures; Accepted in Astronomy and Astrophysics Letters

Scientific paper

Using a reasonably large chemical reaction network consisting of 421 species, we show that along with normal chemical evolution of molecular cloud during collapse and star formation, significant amount of adenine, a DNA base, may be produced after an evolution of 10^{6-7} years. This findings may shed light on whether life on earth had to begin from scratch or these molecules could have contaminated the earth from the beginning.

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