molecular biology

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biology

 [bi-ol´o-je]
scientific study of living organisms. adj., adj biolog´ic, biolog´ical.
molecular biology study of molecular structures and events underlying biological processes, including relation between genes and the functional characteristics they determine.
radiation biology scientific study of the effects of ionizing radiation on living organisms.

mo·lec·u·lar bi·ol·o·gy

study of phenomena in terms of biology molecular (or chemical) interactions; traditionally, the focus of molecular biology is more specific than biochemistry in that it has an emphasis on chemical interactions involved in the replication of DNA, its "transcription" into RNA, and its "translation" into or expression in protein, that is, in the chemical reactions connecting genotype and phenotype.

molecular biology

n.
The branch of biology that deals with the structure, function, and manipulation of nucleic acids and proteins.

molecular biologist n.

molecular biology

[məlek′yələr]
Etymology: L, molecula, small mass; Gk, bios, life, logos, science
the branch of biology that deals with the physical and chemical interactions of molecules involved in life functions.

molecular biology

A major discipline that marked its birth with Watson and Crick's seminal report, 'General Implications of the Structure of Deoxyribonucleic Acid', which elucidated the double helical nature of DNA; MB seeks to understand the mechanisms controlling gene expression, in physiologic and disease states, and provide the tools necessary for treating genetic diseases. See DNA, Human Genome Project.

mo·lec·u·lar bi·ol·o·gy

(mŏ-lekyū-lăr bī-olŏ-jē)
Study of phenomena in terms of molecular interactions; it differs from biochemistry in that it emphasizes chemical interactions involved in the replication of DNA, its "transcription" into RNA, and its "translation" into or expression in protein.

molecular biology

The study of cellular phenomena, and especially genetics, at a molecular or chemical level. As knowledge has progressed the term has become more and more synonymous with ‘biology’, for, today, biology aims at nothing less than a full understanding of the functioning of living things in terms of the nature and interactions of their molecules.

molecular biology

the study of the structure and function of MOLECULES of biological importance, such as NUCLEIC ACIDS and PROTEINS.

mo·lec·u·lar bi·ol·o·gy

(mŏ-lekyū-lăr bī-olŏ-jē)
Study of phenomena in terms of molecular interactions.

molecular biology,

n the study of biology from the viewpoint of the physical and chemical interactions of molecules involved in life functions.

molecular

of, pertaining to, or composed of molecules.

molecular activity
see enzyme activity.
molecular biology
study of the biochemical and biophysical aspects of the structure and function of genes and other subcellular entities, and of such specific proteins as hemoglobins, enzymes and hormones; it provides knowledge of cellular differentiation and metabolism and of comparative evolution.
molecular layer
layers of cells in both cerebellar and cerebral cortices.
molecular mimicry
see antigenic mimicry.
molecular weight
see molecular weight.
References in periodicals archive ?
Scheller, a renowned cell and molecular biologist, joined Genentech in 2001 as senior vice president of Research.
Although scientists have made three-dimensional geometric shapes out of DNA before, those structures have readily deformed, says molecular biologist Gerald Joyce of the Scripps Research Institute in La Jolla, Calif.
Scientists usually study DNA extracted from living tissue or from preserved remains, says Eske Willerslev, a molecular biologist at the University of Copenhagen.
To place springtails on the arthropod family tree, molecular biologist Francesco Nardi of the University of Siena in Italy and his colleagues analyzed the genetics of cell structures called mitochondria in two springtail species and an insect.
Molecular biologist Ferid Murad of the University of Texas at Houston says the finding will spark "lots of ideas" for the treatment of colon cancer.
Richard Klausner, a renowned molecular biologist and the executive director of the Global Health Program of the Bill and Melinda Gates Foundation.
We know of hundreds of [sildenafil-related] cardiac deaths, but they have never been causally linked to the drug's effects," says Xiaoping Du, a molecular biologist at the medical school.
This DNA alteration prevented the gene from doing its normal job: producing a particular sugar molecule that attaches to the surfaces of cells, say molecular biologist Ajit Varki of the University of California, San Diego and his coworkers.
Wiman, a molecular biologist at the Karolinska Institute in Stockholm.
OTCBB:NOGN) announced today the addition of renowned molecular biologist Li-fang Liang, Ph.
This text is intended for molecular biologists who perform quantitative analyses and for statisticians who work with molecular biologists and other biomedical researchers and aims to balance the needs of these two audiences by progressively introducing basic to intermediate statistical methods and demonstrating their application to the various biological data generated from the field of molecular biology and the types of questions of interest to molecular biologists.
com and the company's Internet research engine for molecular biologists, http://www.

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