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Перевод: bivalent
[прилагательное] двухвалентный; двувалентный
Тезаурус:
- At MI, the XY bivalent is readily recognizable by its chain-like appearance.
- At late pachytene, each bivalent exhibits a linear sequence of compacted regions of chromatin or chromomeres which vary in number, size and sequence for each chromosome in the complement.
- For iron this reaction is written: Iron usually exists in the bivalent ferrous state (Fe 2 +;) in most rock-forming minerals, but it can be converted by oxidation to the trivalent ferric form (Fe 3 +;) with the effect that the neutral charge of the crystal structure is upset and can only be regained by the loss of other cations.
- The chromatids of the chromosomes in a bivalent pair intertwine with one another and exchange sections of points termed chiasmata (cross-over)
- Bivalent:
- Metaphase 1 (M1) is the stage of meiosis used in routine analysis for the establishment of bivalent number, chiasma frequency or position, and for the detection of a chromosomal anomaly such as a reciprocal translocation which can be recognized as a multivalent configuration in the complement.
- Chomsky 1965 argued that word meanings can be accurately described by sets of bivalent features, which he called semantic markers, e.g. male, animate, human, etc.
- Prior to naming the polymer, the CRU is oriented and named according to the established principles or organic nomenclature for naming bivalent and multivalent groups.
- Bright fluorescence is found on pairs No. 1,9, 16 and the Y chromosome as well as, occasionally, bivalent No. 15 (Figure 3).
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