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Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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allotetraploid

Biology; Biotechnology

An organism with four genomes derived from hybridization of different species. Usually, in forms that become established, two of the four genomes are from one species and two are ...

allozygote

Biology; Biotechnology

A diploid individual that is homozygous at a locus in which the two genes are not identical by descent from a common ancestor.

anneal

Biology; Biotechnology

The pairing of complementary DNA or RNA sequences, via hydrogen bonding, to form a double-stranded polynucleotide. Most often used to describe the binding of a short primer or ...

antagonism

Biology; Biotechnology

An interaction between two organisms (e.g., moulds or bacteria) in which the growth of one is inhibited by the other. cf synergism.

anther culture

Biology; Biotechnology

The aseptic culture of anthers for the production of haploid plants from microspores. See androgenesis; gynogenesis; parthenogenesis.

anthesis

Biology; Biotechnology

The flowering period or efflorescence. Anthesis is the time of full bloom, which lasts till fruit set.

anthocyanin

Biology; Biotechnology

Water-soluble blue, purple and red flavonoid pigments found in vacuoles of cells.