I would not be surprised if we find life in other planet/moon that use "only" [1] right handed amino acids. But it looks like it's easier to produce "only" one type of them: "only" left handed or "only" right handed.
To produce both in a 50%-50% ratio they would need to duplicate most of the enzymes, or have a specialized enzyme that transform one into the other. It's not impossible, but it seams to be wasteful.
Nobody is sure, but our current best guess is that life in other planets/moons will choose left or right instead of a 50%-50% mix.
[1] Life on Earth use a small amount of right handed amino acids, so I expect a "mirror" life to use a small amount of left handed amino acids.
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I agree. My version:
I would not be surprised if we find life in other planet/moon that use "only" [1] right handed amino acids. But it looks like it's easier to produce "only" one type of them: "only" left handed or "only" right handed.
To produce both in a 50%-50% ratio they would need to duplicate most of the enzymes, or have a specialized enzyme that transform one into the other. It's not impossible, but it seams to be wasteful.
Nobody is sure, but our current best guess is that life in other planets/moons will choose left or right instead of a 50%-50% mix.
[1] Life on Earth use a small amount of right handed amino acids, so I expect a "mirror" life to use a small amount of left handed amino acids.