Definition of bivalent in English:

bivalent

adjective bʌɪˈveɪl(ə)ntbaɪˈveɪlənt

1Biology
(of homologous chromosomes) associated in pairs.
〔生〕（同源染色体）二价的
Example sentencesExamples
- A bivalent B chromosome was removed directly from a pachytene slide by a micromanipulator.
- Slides containing F 2 worms were screened for the presence of worms with diakinesis nuclei exhibiting more than six chromatin masses (indicating failure in bivalent formation).
- If chromosomes 1 and 2 are genetically more identical, as are chromosomes 3 and 4, there are three different combinations for the bivalent chromosome pairing.
- Note that the bivalent sex chromosome remaining in the vicinity of the equator appears to be oriented to the poles.
- Because only homologous chromosomes pair, allopolyploids strictly exhibit bivalent formation (two chromosomes pair) at meiosis and undergo disomic inheritance for each locus.
2Chemistry
another term for divalent
Example sentencesExamples
- The bivalent cations were slightly increased as well as chloride and phosphate.
- Using strips of sister holograms from one slide, we made a range of measurements of various mono- and bivalent ions.
- It causes the cell wall to become rigid by blocking free carboxyl groups that interact with bivalent ions like Ca 2 +.
- The surface of BR is bound with bivalent metal cations, charge amino acids and polar phospholipids to form an asymmetrical distribution of charges on the membrane surface.
- A comparison of the effect of monovalent counterions and bivalent counterions is a subject of our future work.

noun bʌɪˈveɪl(ə)ntbaɪˈveɪlənt

Biology

A pair of homologous chromosomes.
（一对）二价（染色）体
Example sentencesExamples
- Three properties of meiotic chromosomes act to form a bivalent that will undergo proper reductional division.
- On average, each double-crossover bivalent produces one double-crossover chromosome (of four) in the absence of chromatid interference.
- An additional line drawing to the side depicts the spatial arrangement of the bivalent corresponding to LG - 02 and the FISH signals associated therewith.
- However, no investigation has been made into whether homologous chromosome pairs or bivalents with altered patterns of recombination events may also be at increased risk for nondisjunction in mammals other than humans.
- True non-disjunction as a mechanism causing aneuploidy was separately assessed when a bivalent was found in a set of metaphase II chromosomes.

Derivatives

bivalency

noun

Origin

Mid 19th century: from bi- 'two' + Latin valent- 'being strong' (from the verb valere).

Definition of bivalent in US English:

bivalent

adjectivebaɪˈveɪləntbīˈvālənt

1Biology
(of homologous chromosomes) associated in pairs.
〔生〕（同源染色体）二价的
Example sentencesExamples
- A bivalent B chromosome was removed directly from a pachytene slide by a micromanipulator.
- Note that the bivalent sex chromosome remaining in the vicinity of the equator appears to be oriented to the poles.
- Because only homologous chromosomes pair, allopolyploids strictly exhibit bivalent formation (two chromosomes pair) at meiosis and undergo disomic inheritance for each locus.
- Slides containing F 2 worms were screened for the presence of worms with diakinesis nuclei exhibiting more than six chromatin masses (indicating failure in bivalent formation).
- If chromosomes 1 and 2 are genetically more identical, as are chromosomes 3 and 4, there are three different combinations for the bivalent chromosome pairing.
2Chemistry
another term for divalent
Example sentencesExamples
- The bivalent cations were slightly increased as well as chloride and phosphate.
- A comparison of the effect of monovalent counterions and bivalent counterions is a subject of our future work.
- It causes the cell wall to become rigid by blocking free carboxyl groups that interact with bivalent ions like Ca 2 +.
- Using strips of sister holograms from one slide, we made a range of measurements of various mono- and bivalent ions.
- The surface of BR is bound with bivalent metal cations, charge amino acids and polar phospholipids to form an asymmetrical distribution of charges on the membrane surface.

nounbaɪˈveɪləntbīˈvālənt

Biology

A pair of homologous chromosomes.
（一对）二价（染色）体
Example sentencesExamples
- However, no investigation has been made into whether homologous chromosome pairs or bivalents with altered patterns of recombination events may also be at increased risk for nondisjunction in mammals other than humans.
- An additional line drawing to the side depicts the spatial arrangement of the bivalent corresponding to LG - 02 and the FISH signals associated therewith.
- Three properties of meiotic chromosomes act to form a bivalent that will undergo proper reductional division.
- On average, each double-crossover bivalent produces one double-crossover chromosome (of four) in the absence of chromatid interference.
- True non-disjunction as a mechanism causing aneuploidy was separately assessed when a bivalent was found in a set of metaphase II chromosomes.

Origin

Mid 19th century: from bi- ‘two’ + Latin valent- ‘being strong’ (from the verb valere).

词汇	bivalent
释义	Definition of bivalent in English: bivalent adjective bʌɪˈveɪl(ə)ntbaɪˈveɪlənt 1Biology (of homologous chromosomes) associated in pairs. 〔生〕（同源染色体）二价的 Example sentencesExamples A bivalent B chromosome was removed directly from a pachytene slide by a micromanipulator. Slides containing F 2 worms were screened for the presence of worms with diakinesis nuclei exhibiting more than six chromatin masses (indicating failure in bivalent formation). If chromosomes 1 and 2 are genetically more identical, as are chromosomes 3 and 4, there are three different combinations for the bivalent chromosome pairing. Note that the bivalent sex chromosome remaining in the vicinity of the equator appears to be oriented to the poles. Because only homologous chromosomes pair, allopolyploids strictly exhibit bivalent formation (two chromosomes pair) at meiosis and undergo disomic inheritance for each locus. 2Chemistry another term for divalent Example sentencesExamples The bivalent cations were slightly increased as well as chloride and phosphate. Using strips of sister holograms from one slide, we made a range of measurements of various mono- and bivalent ions. It causes the cell wall to become rigid by blocking free carboxyl groups that interact with bivalent ions like Ca 2 +. The surface of BR is bound with bivalent metal cations, charge amino acids and polar phospholipids to form an asymmetrical distribution of charges on the membrane surface. A comparison of the effect of monovalent counterions and bivalent counterions is a subject of our future work. noun bʌɪˈveɪl(ə)ntbaɪˈveɪlənt Biology A pair of homologous chromosomes. （一对）二价（染色）体 Example sentencesExamples Three properties of meiotic chromosomes act to form a bivalent that will undergo proper reductional division. On average, each double-crossover bivalent produces one double-crossover chromosome (of four) in the absence of chromatid interference. An additional line drawing to the side depicts the spatial arrangement of the bivalent corresponding to LG - 02 and the FISH signals associated therewith. However, no investigation has been made into whether homologous chromosome pairs or bivalents with altered patterns of recombination events may also be at increased risk for nondisjunction in mammals other than humans. True non-disjunction as a mechanism causing aneuploidy was separately assessed when a bivalent was found in a set of metaphase II chromosomes. Derivatives bivalency noun Origin Mid 19th century: from bi- 'two' + Latin valent- 'being strong' (from the verb valere). Definition of bivalent in US English: bivalent adjectivebaɪˈveɪləntbīˈvālənt 1Biology (of homologous chromosomes) associated in pairs. 〔生〕（同源染色体）二价的 Example sentencesExamples A bivalent B chromosome was removed directly from a pachytene slide by a micromanipulator. Note that the bivalent sex chromosome remaining in the vicinity of the equator appears to be oriented to the poles. Because only homologous chromosomes pair, allopolyploids strictly exhibit bivalent formation (two chromosomes pair) at meiosis and undergo disomic inheritance for each locus. Slides containing F 2 worms were screened for the presence of worms with diakinesis nuclei exhibiting more than six chromatin masses (indicating failure in bivalent formation). If chromosomes 1 and 2 are genetically more identical, as are chromosomes 3 and 4, there are three different combinations for the bivalent chromosome pairing. 2Chemistry another term for divalent Example sentencesExamples The bivalent cations were slightly increased as well as chloride and phosphate. A comparison of the effect of monovalent counterions and bivalent counterions is a subject of our future work. It causes the cell wall to become rigid by blocking free carboxyl groups that interact with bivalent ions like Ca 2 +. Using strips of sister holograms from one slide, we made a range of measurements of various mono- and bivalent ions. The surface of BR is bound with bivalent metal cations, charge amino acids and polar phospholipids to form an asymmetrical distribution of charges on the membrane surface. nounbaɪˈveɪləntbīˈvālənt Biology A pair of homologous chromosomes. （一对）二价（染色）体 Example sentencesExamples However, no investigation has been made into whether homologous chromosome pairs or bivalents with altered patterns of recombination events may also be at increased risk for nondisjunction in mammals other than humans. An additional line drawing to the side depicts the spatial arrangement of the bivalent corresponding to LG - 02 and the FISH signals associated therewith. Three properties of meiotic chromosomes act to form a bivalent that will undergo proper reductional division. On average, each double-crossover bivalent produces one double-crossover chromosome (of four) in the absence of chromatid interference. True non-disjunction as a mechanism causing aneuploidy was separately assessed when a bivalent was found in a set of metaphase II chromosomes. Origin Mid 19th century: from bi- ‘two’ + Latin valent- ‘being strong’ (from the verb valere).
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