Each of the small cells which bud off from an oocyte at the two meiotic divisions and do not develop into ova.
〔生〕极体
Example sentencesExamples
In addition, the polar bodies contained condensed chromosomes with a normal rosette arrangement.
In most multicellular organisms, each of the two meiotic divisions in females results in an oocyte and a polar body, each of which has a distinct morphology and developmental fate.
The implication of this suggestion is a chromosome segregation effect in which meiotic nondisjunction would more likely result in the retention of an additional chromosome in the oocyte than in the polar body.
The three other products of female meiosis, the polar bodies, arrest in a metaphase state and associate with radiating arrays of microtubules.
At this time, the primary oocyte's first meiotic division occurs, resulting in the formation of the first polar body and the secondary oocyte.
Definition of polar body in US English:
polar body
noun
Biology
Each of the small cells which bud off from an oocyte at the two meiotic divisions and do not develop into ova.
〔生〕极体
Example sentencesExamples
At this time, the primary oocyte's first meiotic division occurs, resulting in the formation of the first polar body and the secondary oocyte.
The three other products of female meiosis, the polar bodies, arrest in a metaphase state and associate with radiating arrays of microtubules.
In addition, the polar bodies contained condensed chromosomes with a normal rosette arrangement.
In most multicellular organisms, each of the two meiotic divisions in females results in an oocyte and a polar body, each of which has a distinct morphology and developmental fate.
The implication of this suggestion is a chromosome segregation effect in which meiotic nondisjunction would more likely result in the retention of an additional chromosome in the oocyte than in the polar body.