安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Khan Academy
If you're seeing this message, it means we're having trouble loading external resources on our website If you're behind a web filter, please make sure that the domains * kastatic org and * kasandbox org are unblocked
- Phases of the cell cycle - Khan Academy
In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase During interphase , the cell grows and makes a copy of its DNA
- Cell cycle checkpoints - Khan Academy
In eukaryotic cells there are clear phases of the cell cycle, where for example the genetic material must be duplicated (in Synthesis phase) before the cell can divide (during mitosis) In bacteria, these different phases of the cell cycle can overlap
- Phases of mitosis - Khan Academy
How a cell divides to make two genetically identical cells Prophase, metaphase, anaphase, and telophase
- Phases of meiosis I - Khan Academy
In meiosis I, cells go through four phases: prophase I, metaphase I, anaphase I, and telophase I During prophase I, chromosomes pair up and exchange genetic material, creating more variation In metaphase I, chromosomes line up in the middle of the cell
- Khan Academy
Az ábra forrása az OpenStax College, Biology: "The cell cycle: Figure 1" c ábrája Az M fázis A mitotikus (M-) fázisban a sejt kettéosztja a korábbiakban megkettőzött DNS-t, illetve a sejtplazmát, és így két utódsejtet hoz létre
- 可汗学院 - Khan Academy
可汗学院 - Khan Academy
- Khan Academy
Si estás viendo este mensaje, significa que estamos teniendo problemas para cargar materiales externos en nuestro sitio Si estás detrás de un filtro de páginas web, por favor asegúrate de que los dominios * kastatic org y * kasandbox org estén desbloqueados
|
|
|