Unknown Story
Kuvakäsikirjoitus Teksti
- First let's cover the basics:Meiosis is when 1 single diploid cell goes through 2 cell divisions to produce 4 haploid daughter cells needed for sexual reproduction also known as gametes. This allows genetic diversity because the daughter cells only contain half the amount of genetic material.
- In meiosis 1, 5 steps occur1. Interphase 1: the cell is preparing for meiosis2. Prophase 1: chromosomes & homologous pairs are formed and exchange pieces of genetic info. This is called cross over.3. Metaphase 1: Paired homologous chromosomes line up at the equator of the cell to receive exact amount of genetic material.4. Anaphase 1: 1 set of homologous chromosomes are pulled to both pole of the cell. 5. Telophase 1: the cell is now separated.
- In meiosis 2, 4 steps occur in 2 cells1. Prophase 2: once chromatin is formed and chromosomes relax, they will condense to form chromosomes. Spindle fibers then form attaching to the sister chromatids.2. Metaphase 2: The sister chromatids then line up in the equator of the cells while the spindle fibers move to opposite poles. 3. Anaphase 2: genetic information is then separated for the second time. The spindle fibers then separate the sister chromatids causing different genes to independently separate from one another.4. Telophase 2: Finally, the chromosomes are on opposite poles of the cell and the nuclear envelope reforms indicating the cell is ready for cytokinesis.
- Yup.
- So this all results in 4 haploid cells?
- Thanks to you.
- Oh wow that's a lot you learned.
- Yeah, glad I can teach you something. Until next time, bye!
- Thank you, Bye!
Yli 30 miljoonaa kuvakäsikirjoitusta luotu