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词汇 Metaphasic
分类 英语词汇 英语翻译词典
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Metaphasic

英语百科

Metaphase

(重定向自Metaphasic)
Chromosomes lined up on the metaphase plate. Two views with the metaphase plate rotated 90°.
Metaphase in cells (here an animal cell) are characterized by the arrangement of chromosomes at the equatorial plane of the cell
Human metaphase chromosomes (normal male karyotype)

Metaphase (from the Greek μετά, "adjacent" and φάσις, "stage") is a stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase). These chromosomes, carrying genetic information, align in the equator of the cell before being separated into each of the two daughter cells. Metaphase accounts for approximately 4% of the cell cycle's duration. Preceded by events in prometaphase and followed by anaphase, microtubules formed in prophase have already found and attached themselves to kinetochores in metaphase.

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