E
Erich
Guest
Darwin predicted that the fossil record would show numerous transitional fossils, even 140 years later, all we have are a handful of disputable examples.The time that it becomes apparent is mostly in a survival situation. Where the ones with a certain “mutation” or gene variation is better suited to survive a given circumstance. If this variation gives the organism an edge on survival, the organisms without the variation dies. This happens over a very long period of time.
There are a lot of loopholes in the evolutionary theory of the origin of life (google [loopholes in evolutionary theory of origin of life] for a list of 42,200 hits). Here’s a summary:Only thing is that your still basing statements to prove Mr. Invisible on unproven assumptions.
- There is almost universal agreement among specialists that Earth’s primordial atmosphere contained no methane, ammonia or hydrogen —‘reducing’ gases. Rather, most evolutionists now believe it contained carbon dioxide and nitrogen. Miller-type sparking experiments will not work with those gases in the absence of reducing gases.
- The atmosphere contained free oxygen, which would destroy organic compounds. Oxygen would be produced by photodissociation of water vapour. Oxidised minerals such as hematite are found as early as 3.8 billion years old, almost as old as the earliest rocks, and 300 million years older than the earliest life.
- Catch-22: if there was no oxygen there would be no ozone, so ultraviolet light would destroy biochemicals.
- All energy sources that produce the biochemicals destroy them even faster! The Miller/Urey experiments used strategically designed traps to isolate the biochemicals as soon as they were formed so the sparks/UV did not destroy them. Without the traps, even the tiny amounts obtained would not have been formed.
- Biochemicals would react with each other or with inorganic chemicals. Sugars (and other carbonyl (>C=O) compounds) react destructively with amino acids (and other amino (–NH2) compounds), but both must be present for a cell to form. Without enzymes from a living cell, formaldehyde (HCHO) reactions with hydrogen cyanide (HCN) are necessary for the formation of DNA and RNA bases, condensing agents, etc. But HCHO and especially HCN are deadly poisons — HCN was used in the Nazi gas chambers! They destroy vital proteins. Abundant Ca2+ ions would precipitate fatty acids (necessary for cell membranes) and phosphate (necessary for such vital compounds as DNA, RNA, ATP, etc.). Metal ions readily form complexes with amino acids, hindering them from more important reactions.
- No geological evidence has been found anywhere on Earth for the alleged primordial soup.
- Depolymerisation is much faster than polymerisation. Water is a poor medium for condensation polymerisation. Polymers will hydrolyse in water over geological time. Condensing agents (water absorbing chemicals) require acid conditions and they could not accumulate in water. Heating to evaporate water tends to destroy some vital amino acids, racemise all the amino acids, and requires geologically unrealistic conditions. Besides, heating amino acids with other gunk produced by Miller experiments would destroy them.
- Polymerisation requires bifunctional molecules (can combine with two others), and is stopped by a small fraction of unifunctional molecules (can combine with only one other, thus blocking one end of the growing chain). Miller experiments produce five times more unifunctional molecules than bifunctional molecules.
- Sugars are destroyed quickly after the reaction (‘formose’) which is supposed to have formed them. Also, the alkaline conditions needed to form sugars are incompatible with acid conditions required to form polypeptides with condensing agents.
- Long time periods do not help the evolutionary theory if biochemicals are destroyed faster than they are formed (cf. points 4, 7, & 9).
- Not all of the necessary ‘building blocks’ are formed; e.g. ribose and cytosine are hard to form and are very unstable.
- Life requires homochiral polymers (all the same ‘handedness’) — proteins have only ‘lefthanded’ amino acids, while DNA and RNA have only ‘right-handed’ sugars. Miller experiments produce racemates — equal mixtures of left and right handed molecules. A small fraction of wrong handed molecules terminates RNA replication, shortens polypeptides, and ruins enzymes.
- Life requires catalysts which are specific for a single type of molecule. This requires specific amino acid sequences, which have extremely low probabilities (~10–650 for all the enzymes required). Prebiotic polymerisation simulations yield random sequences, not functional proteins or enzymes.
- The origin of coding system of proteins on DNA is an enigma. So is the origin of the message encoded, which is extraneous to the chemistry, as a printed message is to ink molecules. Code translation apparatus and replicating machinery are themselves encoded — a vicious circle. A code cannot self-organize.
- The origin of machines requires design, not random energy. E.g: the Nobel prize-winner Merrifield designed an automatic protein synthesiser. Each amino acid added to the polymer requires 90 steps. The amino acid sequence is determined by a program. A living cell is like a self-replicating Merrifield machine.