What does bivalent (genetics) mean?
Definitions for bivalent (genetics)
bi·va·lent (ge·netics)
This dictionary definitions page includes all the possible meanings, example usage and translations of the word bivalent (genetics).
Wikipedia
Bivalent (genetics)
A bivalent is one pair of chromosomes (sister chromatids) in a tetrad. A tetrad is the association of a pair of homologous chromosomes (4 sister chromatids) physically held together by at least one DNA crossover. This physical attachment allows for alignment and segregation of the homologous chromosomes in the first meiotic division. In most organisms, each replicated chromosome (composed of two identical sisters chromatid) elicits formation of DNA double-strand breaks during the leptotene phase. These breaks are repaired by homologous recombination, that uses the homologous chromosome as a template for repair. The search for the homologous target, helped by numerous proteins collectively referred as the synaptonemal complex, cause the two homologs to pair, between the leptotene and the pachytene phases of meiosis I
Numerology
Chaldean Numerology
The numerical value of bivalent (genetics) in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of bivalent (genetics) in Pythagorean Numerology is: 5
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