i gave it a google
The probability of an average protein molecule made up of 500 amino acids being arranged in the correct quantity and sequence in addition to the probability of all of the amino acids it contains being only left-handed and being combined with only peptide bonds is "1" over 10950. We can write this number which is formed by putting 950 zeros next to 1 as follows:
10950 =
100.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.
000.000.000.000.000.000.000.000.000.000.000.000.000.
There are 3 basic conditions for the formation of a useful protein:
First condition: that all the amino acids in the protein chain are of the right type and in the right sequence
Second condition: that all the amino acids in the chain are left-handed
Third condition: that all of these amino acids are united between them by forming a chemical bond called "peptide bond".
In order for a protein to be formed by chance, all three basic conditions must exist simultaneously. The probability of the formation of a protein by chance is equal to the multiplication of the probabilities of the realisation of each of these conditions.
For instance, for an average molecule comprising of 500 amino acids:
1. The probability of the amino acids being in the right sequence:
There are 20 types of amino acids used in the composition of proteins. According to this: -The probability of each amino acid being chosen correctly among these 20 types= 1/20-The probability of all of those 500 amino acids being chosen correctly= 1/20500= 1/10650 = 1 chance in 10650
2. The probability of the amino acids being left-handed: -The probability of only one amino acid being left-handed= 1/2-The probability of all of those 500 amino acids being left-handed at the same time= 1/2500 = 1/10150= 1 chance in 10150
3. The probability of the amino acids being combined with a "peptide bond":
Amino acids can combine with each other with different kinds of chemical bonds. In order for a useful protein to be formed, all the amino acids in the chain must have been combined with a special chemical bond called a "peptide bond". It is calculated that the probability of the amino acids being combined not with another chemical bond but by a peptide bond is 50%. In relation to this:
-The probability of two amino acids being combined with a "peptide bond"= 1/2-The probability of 500 amino acids all combining with peptide bonds= 1/2499 = 1/10150 = 1 chance in 10150
TOTAL PROBABILITY= 1/10650 X 1/10150 X 1/10150 =
10950= 1 chance in 10950
this right?