Question

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

Answer 1

• Evolution has exhibited greater stability in molecular structure when compared with morphological structures. Genes which code for the synthesis of biomolecules such as proteins, nucleic acids have not changed over a long period of time. These have maintained a constant form and number
• Over a long period of newly formed generations, amount of DNA and the chromosome number are maintained constant. All these facts exhibit stability in molecular structure
• Evolution of man over different stages show that there is no stability in morphological structures. Evolution of man can be confirmed from fossil evidences