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  Home >> Molecular Biology Dictionary >> Deoxyribonuclease Dnase - devitrification

Deoxyribonucleic (DNase)
Any enzyme that hydrolyses DNA.

De-repression
The process of "turning on" the expression of a gene or set of genes whose expression has been repressed (turned off). Displacement of a repressor protein from a promoter region of DNA. When attached to the DNA, the repressor protein prevents RNA polymerase from initiating transcription. The "turning on" of a gene.

Derivative
1. Resulting from or derived from. 2. Term used to identify a variant during meristematic cell division.

Desoxyribonucleic acid
Obsolete spelling of deoxyribonucleic acid (DNA).

Determinate growth
Growth determined and limited in time, as in most floral meristems and leaves. The differentiation process is irreversibly established. Determinate growth contrasts with the usual culture growth, which is infinite and indeterminate

Determination
Process by which undifferentiated cells in an embryo become committed to develop into specific cell types, such as neurons, fibroblasts or muscle cells.

Determined
Describing embryonic tissue at a stage when it can develop only as a certain kind of tissue.

Development
The sum total of events that contribute to the progressive elaboration of an organism. The two major aspects of. development are growth and differentiation.

Deviation
1. In statistics: the difference between an actual observation and the mean of all observations.
2. An alteration from the typical form, function or behaviour. Mutation or stress are the common reasons behind deviation. dextrin An intermediate polysaccharide compound resulting from the hydrolysis of starch to maltose by amylase enzymes. dextrose See glucose.

 

Devitrification
The process in which a glass (noncrystalline or vitreous solid) transforms to a crystalline solid

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