Solun elämänkierto ja mitoosi

Flickr: 01c by uafcde ; Attribution 2.0 Generic (CC BY 2.0)

Uuta ja ajankohtaista

• Poimintoja Twitteristä artikkelin lopussa

Mi­too­si eli tu­man ja­kau­tu­mi­nen on osa so­lun elä­män­kier­toa, jon­ka vai­heet ovat seu­raa­vat:

• G1 = kas­vu­vai­he
• S = syn­tee­si­vai­he: pe­ri­mä kah­den­tuu
• G2 = val­mis­tau­tu­mi­nen mi­too­siin: solu­e­li­met kah­den­tu­vat, kro­mo­so­mien kro­ma­tii­ni­rih­mat pak­kau­tu­vat tii­viim­mäk­si, mik­ro­put­ket jär­jes­täy­ty­vät
• mitoosi
• sytokineesi: solu ja­kau­tuu lo­pul­li­ses­ti kah­tia; eläin­so­lul­la solu­kal­von ku­rou­tu­mi­sen kaut­ta – kas­vi­so­lul­la puo­lis­ko­jen vä­liin syn­tyy uusi solu­sei­nä

Nettimateriaalia

• Highered.mheducation; Mi­too­si ja mei­oo­si: Ani­maa­ti­oi­ta ja ver­tai­lu­ja (Flash)
• YLE Op­pi­mi­nen; Mi­too­si ja mei­oo­si
• Opetus.tv: mitoosi
• Ted.ed: Cell Division (Mitosis)
• Cells ali­ve!
  • Ani­mal Cell Mi­to­sis
  • Bac­te­ria Di­vi­de and Mul­tip­ly
• abpi; Interactive resources for schools; Cell Division
  • abpi; Interactive resources for schools; Mitosis in eukaryotic cells
  • abpi; Interactive resources for schools; Mitosis in action
  • abpi; Interactive resources for schools; Cell cycle and control

OpenStax- materiaali

• OpenStax; Biology
  • 10.1 Cell Division
  • 10.2 The Cell Cycle
  • 10.3 Control of the Cell Cycle
  • 10.4 Cancer and the Cell Cycle
  • 10.5 Prokaryotic Cell Division
• OpenStax; Anatomy and Physiology
  • 3.5 Cell Growth and Division
• Lisenssi ja käyttöehdot
  • https://creativecommons.org/licenses/by/4.0/
  • Access for free at https://openstax.org/books/anatomy-and-physiology/pages/1-introduction

OpenStax: solun elinkierto ja mitoosi

The cell cycle consists of interphase and the mitotic phase

  

During prometaphase, mitotic spindle microtubules from opposite poles attach to each sister chromatid at the kinetochore

  

During cytokinesis in animal cells, a ring of actin filaments forms at the metaphase plate

  

Slowly scan whitefish blastula cells with the high-power objective as illustrated in image (a) to identify their mitotic stage. (b) A microscopic image of the scanned cells is shown.

  

Slowly scan whitefish blastula cells with the high-power objective as illustrated in image (a) to identify their mitotic stage. (b) A microscopic image of the scanned cells is shown

  

The cell cycle is controlled at three checkpoints

  

These images show the steps of binary fission in prokaryotes

  

Tehtävä mitoosista:

Twitteristä

How one cell gives rise to an entire body: https://t.co/VY9tPxhzw8 #ScienceMagArchives pic.twitter.com/ThTkvH1qQO

— News from Science (@NewsfromScience) August 21, 2019