I may have a bone to pick with a couple seventh grade biology teachers.
From ScienceNews, April 26, 2022:
The discovery adds to evidence that suggests life’s precursors came from space
More of the ingredients for life have been found in meteorites.
Space rocks that fell to Earth within the last century contain the five bases that store information in DNA and RNA, scientists report April 26 in Nature Communications.
These “nucleobases” — adenine, guanine, cytosine, thymine and uracil — combine with sugars and phosphates to make up the genetic code of all life on Earth. Whether these basic ingredients for life first came from space or instead formed in a warm soup of earthly chemistry is still not known (SN: 9/24/20). But the discovery adds to evidence that suggests life’s precursors originally came from space, the researchers say....
....MUCH MORE
