Evoluation has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.

Explanation

We see immense diversity in size, form, structure and morphological features in the living world. But at the molecular level these, diverse types of organisms exhibit unbelievable similarity. For instance, the basic biomolecules like DNA, RNA, carbohydrates, proteins etc. exhibit remarkable similarity in all organisms. The nucleotides, sugar phosphate backbone and the fundamental way in which the three-base codon, code for 20 amino acids (including start and stop codons) are very similar in diverse living forms. 20 primary amino acids in life have not be replaced by some of the very large number of alternatives that exist in nature, such as in meteorites (`gt`60 amino acids have been found in certain carbonaceous meteorites). Hence, evolution has exhibited a greater stability of molecular structure when compared with morphological structures.