- - the place or type of site where an organism or population naturally
- the space in which an organism, population, or species lives.
- habitat restoration
- the return of a habitat to its original community structure, natural
complement of species and natural functions.
- - cell or organism that contains one set of chromosomes.
- having the number of chromosomes present in the normal germ cell equal
to half the number in the normal somatic cell. [CUB]
- plants or plant parts valued for medicinal, savoury, cosmetic,
flavouring, or aromatic qualities. [CUB]
- genetic variability among individuals within populations and variability
- homologous chromosomes
- contain identical linear sequences of genes and pair during meiosis.
- homozygote or homozygous
- - individual having two copies of the same allele at a genetic locus.
- individual having two identical alleles of a particular gene or genes,
and so breeding true for the corresponding characteristics. [CUB]
- the cultivation of ornamental and vegetable plants in gardens or
smallholdings (market gardens). Latin: hortus = garden. [CUB]
- - an area particularly rich in total numbers of species.
- an area of especially high pollutant concentration.
- individual organism resulting from a cross between parents of differing
genotypes. Hybrids may be fertile or sterile, depending on qualitative
and/or quantitative differences in the genomes of the two parents. Hybrids
are most commonly formed by sexual cross-fertilization between compatible
organisms, but techniques for the production of hybrids from widely
differing organisms are being developed by cell fusion and tissue culture.
[CUB slightly modified by JVG]
- hybrid zone
- region of reproduction among individuals of different species.
- - crossing of individuals from genetically different strains,
populations or species.
- the act of crossing two different individual organisms of differing
genetic constitution from different populations or different species.
- a molecular procedure in which single strands of DNA and/or RNA are
mixed and subsequently bind to one another. The degree of binding is a
measure of the relatedness of the strands. The procedure is used to detect
RNA or DNA using suitable probes. [CUB]
- a state of low oxygen concentration in water and sediments, relative to
the needs of most aerobic species.
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(Convention on Biological Diversity)
© Belgian Clearing-House Mechanism, 2001.
On the Internet since 7 October 1996.