univalent + noun
A univalent chromosome fails to pair during synapsis.
单价染色体在联会期无法配对。
单价疫苗的；单价的；单价染色体的；不与同源染色体配对的；单叶的；原子价为1的,或只有一种化合价的。；疫苗价为1的。
用于化学，指化合价为一
原子价为1的,或只有一种化合价的。
Having an atomic valence of 1, or having only one valence.
疫苗价为1的。
Having a vaccine valence of 1.
在联会期间不与同源染色体配对的染色体的,或与之相关的。
Of, or relating to, a chromosome that is not paired with its homologous chromosome during synapsis.
(全纯且)单射的。
(Holomorphic and) injective.
Because sodium gives up only one electron during a reaction, chemists describe it as a univalent element.
因为钠在反应中只失去一个电子，化学家将它描述为一价元素。
用法提示：univalent 是形容词，修饰 element，表示钠的化合价为 1。
Silver nitrate is composed of univalent silver ions and nitrate ions in a one-to-one ratio.
硝酸银由一价银离子和硝酸根离子按一比一的比例组成。
用法提示：univalent 是形容词，修饰 silver ions，表示银离子为一价。
In a hydrogen chloride molecule, each univalent hydrogen atom shares its single electron with a chlorine atom.
在氯化氢分子中，每个一价氢原子与一个氯原子共享其唯一电子。
用法提示：univalent 是形容词，修饰 hydrogen atom，表示该原子化合价为 1。
A univalent chromosome fails to pair during synapsis.
单价染色体在联会期无法配对。
The chromosome is univalent in meiotic prophase.
该染色体在减数分裂前期是单价的。
Some chromosomes remain univalent throughout meiosis.
有些染色体在整个减数分裂过程中保持单价状态。
grammar · medium
易错句子The univalent was visible under the microscope.
正确表达The univalent chromosome was visible under the microscope.
在遗传学中，'univalent' 是形容词，意为 '单价体的'，常修饰 'chromosome'。将其直接用作名词是不准确的，应加上所修饰的名词或使用 'univalent chromosome' 结构。
grammar · medium
易错句子During meiosis, homologous chromosomes form univalents.
正确表达During meiosis, homologous chromosomes form bivalents.
在减数分裂中，同源染色体配对形成二价体（bivalent），而非单价体（univalent）。'Univalent' 指未配对的染色体，而 'bivalent' 指已配对的两条染色体。混淆这两个术语是常见错误。
univalent 指未配对的单价染色体，bivalent 指同源染色体配对形成的二价体
univalent 为单价体，multivalent 为多价体，涉及多个同源染色体配对
univalent 在生物学中指单价染色体，monovalent 在化学中指化合价为一价
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