Thought you might enjoy the content.
“WHO ARE THEY?
They get around on planet Earth.
You, dear friend, share fifty percent of your DNA with—yes—a banana.
While some folk were offended at the notion we might share genetic heritage with a chimpanzee—we do. And with his favorite yellow treat.
adenine (A), cytosine (C), guanine (G), and thymine (T) are nucleic acids that make up your DNA. And a banana’s.And the chimp’s.
It’s half the DNA spiral ladder..From Science Primer: Like DNA, RNA polymers are made up of chains of nucleotides *. These nucleotides have three parts: 1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil…don’t freak: I’m about to speak English.
Once cells ‘learned’ to reproduce themselves, life was off and running. And Earth’s genetic heritage is connected: dinosaur genes aren’t totally gone. We likely have some things in common—after all, they had hearts, livers, lungs, and other structures resembling us more than either of us resembles bananas.
The next question is—what other assemblage of chemicals would be self-reproducing, and carry information to organize a living body of some sort, change moderately over time, and derive materials from the environment?
How easily do these acids form in the environment? How easily do they associate? And how hardy are they?
I wouldn’t be that surprised to find, if we find evidence of Martian life, we find evidence of RNA-DNA chemistry…some of Mars may have landed on us, and they had a head start in cooling. I have more question regarding, say, Titan. Will we find a second viable system of doing genetic business?
Nitrogen, carbon, phosphorus, etc: the elements are the elements. The relative availablity varies from star to star, but the elements themselves are the elements, and certain ones combine easily and certain ones don’t combine without heating and pressure. Chemistry is chemistry. Some sugars, eg, wind left-handed and some right-. But basically, sugars are carbon, hydrogen, oxygen—water is hydrogen and oxygen…all pretty low on the periodic totempole.
Just sayin’. IANAC—I am not a chemist, nor a biochemist, but seems to me that given the same building blocks, similar heat and pressure, it may be a duplicatable result.”