I have studied Molecular Biology, mostly at Brebeuf, in the Biology Class and, somewhat, at the Faculty of Medicine in Strasbourg. The classes I have attended cover the same matter that is seen in The Beginner Guide. Molecular Biology is a life's science and shall now be part of the curriculum of the Basic Sciences of Biology. It is why I came to include it among the list of matters to be seen during the premedical years . Molecular Biology is defined in the American Heritage Dictionary as "the branch of biology that deals with the formation, structure, and activity of macromolecules essential to life, such as nucleic acids, amino-acids, and proteins, and especially with their role in cell replication and the transmission of genetic information." Its has many applications in:

1. biotechnology which is " the use of microorganisms, such as bacteria or yeasts, or biological substances, such as enzymes, to perform specific industrial or manufacturing processes. Exemples include the production of certain drugs, synthetic hormones, and bulk foodstuffs as well as the bioconversion of organic waste and the use of genetically altered bacteria in the cleanup of oil spills." (AHD)
2. a. bioengineering, a specialty of the later and mostly genetic engineering, which is the application of the principles of engineering* and technology to the life sciences; . b. ergonomics whis is "the applied science of equipment design, as for the workplace, intended to maximize productivity by reducing operator fatigue and discomfort (AHD) ; i.e., economy at the work place, gaining more in doing less or, in other words, the rational organization of the job "

Biologie Moléculaire: La biologie moléculaire est cette nouvelle branche de la chimie qui étudie les phénomènes biologiques à l'échelle des interactions et des transformations qui se produisent au niveau des molécules qui composent l'unité de matière vivante--la CELLULE dont l'etude structurelle et fonctionelle est la cytologie. La biologie moléculaire se distingue de la chimie organique qui n'étudie que la structure moléculaire de la matière vivante, de la biochimie, la chimie biologique, qui ne se restreint pas seulement à l'étude des phénomenes intermoléculaires et de la microbiologie qui étudie principalement les organismes procaryotes et leurs prédecesseurs. Les quatre se distinguent de la physiologie (et de la physiologie cellulaire; "cell physiology") qui étudie les phénomènes biodynamiques ou vitaux à l'échelle macroscopique (microscopique) et de l' anatomie (et de l'histologie) qui étudie les caractéristiques structurelles d'un organisme à l'échelle macroscopique (microscopique). Pour plus de clarté, référons nous au diagramme suivant qui va du plus petit au plus grand, de la microscopie à la macroscopie, du particulier a l'ensemble:

Souvent ces matieres sont integrees. Par exemple, la physiologie cellulaire est souvent vue avec la physiologie, la biologie moleculaire avec la cytologie ou la biochimie, et l'histologie avec l'anatomie.

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* Engineering: The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems; bioengineering is the design and the building of new characteristics whether it applies to macromolecules, cells or any living organism; while pasteurization of milk, brewing of beer and fermentation of yogurt are important biotechnological processes, they are only that, but grafting and cloning are already bioengineering and selective breeding and hybridation are also genetic engineering; corn has been selectively bred for increased kernel size and number and for nutritional content for about 7000 years by the Amerindians; one of the first western word genetic engineer and the first modern genetic engineer is Gregoire Mendel.