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Analysis Utility Branch Dose–response curves: Graph that shows the magnitude of the response of an organism, as a function of exposure (or doses) to a stimulus or stressor (usually a chemical) after a certain exposure time [2]
Biology portal; To get a detailed description of the various methods see protein methods and nucleic acid methods. Besides the aforementioned groups of techniques, biotechnology also includes plant tissue culture methods, animal cell culture methods, and microbial fermentation methods.
The biological monitoring working party (BMWP) is a procedure for measuring water quality using families of macroinvertebrates as biological indicators. [ 1 ] The method is based on the principle that different aquatic invertebrates have different tolerances to pollutants .
Additionally a variety of additional information is often necessary to increase the value of any biological record, including: How: the method of recording the observation, e.g. pitfall trap or moth trap; Result Minute apertures called stomata are seen in the temporary mount of lead peel. Each stomata is enclosed by two kidney-shaped guard cells.
A bioassay is an analytical method to determine the potency or effect of a substance by its effect on living animals or plants (in vivo), or on living cells or tissues (in vitro). [1] [2] A bioassay can be either quantal or quantitative, direct or indirect. [3] If the measured response is binary, the assay is quantal; if not, it is quantitative ...
These three versions, and their corresponding newly developed laboratory exercises, were piloted at high schools around the United States during the 1960–61 school year. The curriculum materials were then revised during the summer of 1961 based on feedback from teachers, students, and professional biologists, and tested again during 1961–62.
Site-directed mutagenesis is a molecular biology method that is used to make specific and intentional mutating changes to the DNA sequence of a gene and any gene products. Also called site-specific mutagenesis or oligonucleotide-directed mutagenesis , it is used for investigating the structure and biological activity of DNA , RNA , and protein ...
Types of mutations that can be introduced by random, site-directed, combinatorial, or insertional mutagenesis. In molecular biology, mutagenesis is an important laboratory technique whereby DNA mutations are deliberately engineered to produce libraries of mutant genes, proteins, strains of bacteria, or other genetically modified organisms.