The  molecular biology   (in  English  :  Molecular Biology  ) studied biology at the molecular level, so it interferes with both  microbiology  and chemistry  in several branches and intersects with the  biochemistry  and genetics  in several regions and specialties

 Molecular biology is concerned with the study of various interrelationships between all cellular systems, especially the relationships between deoxyribonucleic  acid  (  DNA deficiency  ) and ribonucleic  acid  (  RNA ) and protein synthesis process in addition to the mechanisms for regulating this process and all vital processes