Scientists studying the origin of life have accomplished which of the following steps? (A)abiotic synthesis of protocells with self-replicating, catalytic RNA (B)formation of vesicles that use RNA as a template for DNA synthesis (C)formation of protocells that use DNA to direct the polymer-ization of amino acids (D)abiotic synthesis of RNA's bases (A, C, G, U)

Video transcript

Welcome back. Here's our next question. Which of the following processes has not yet been accomplished by scientists studying the origin of life. So let's look through our choices here, Joyce A. Says the a biotic synthesis of small RNA. So a biotic synthesis meaning managing to synthesize RNA molecules um without living things. So and under the conditions that we would expect in the early earth. So this has been accomplished. So we'll say yes and so therefore cannot be our answer. Choice B says the formation of proto Beyonce that utilize D. N. A. For the prelim prelim ization of amino acids. Well proto Beyonce are believed to be the origin of modern day living cells. Um They contain RNA replicates and have a fatty acid membrane. Um But when we look at these proto Beyonce they do not utilize DNA. They have only R. N. A. In them. So we have not yet managed to find or form um possible early forms of living things that utilize D. N. A. In that process of carrying genetic information and then having RNA to protein as part of the process. So Choice B. Is correct. It has not yet been accomplished. So we'll just look through our other answers. Choice see the a biotic synthesis of polyp peptides again. Um The synthesis of polyp peptides under early earth conditions without living things. And that has been accomplished. So Choice C. Is not correct. And Choice D. The formation of molecular aggregates which have a selectively permeable membrane and those have been um successfully formed um They're not living cells but they are. Um These aggregates of chemicals that have a selectively permeable membrane, so Choice D. Is not correct. Our correct answer for which process not yet accomplished is Choice Be the formation of proto Beyonce that utilize D. N. A. For the politicization of amino assets. See you in the next video.