Meiosis

Interphase

Interphase: The stage the cell spends most of it’s time in. No chromosomes have formed and the nucleus is still whole.

 

Prophase I

Prophase I: Homologous chromosomes pair up, and non-sister chromatids exchange genetic material. This is called crossing over.

 

Metaphase I

Metaphase I: Homologous chromosomes pair up at the equator.

 

Anaphase I

Anaphase I: Homologous chromosomes separate and are pulled to opposite poles by the spindle fibres.

 

Telophase I

Telophase I: One chromosome from each homologous pair is at each pole of the cell.

 

Prophase II

Prophase II: There is one chromosome of the homologous pair in each cell.

 

Metaphase II

Metaphase II: The x-shaped chromosomes form a single line across the middle of the cell.

 

Anaphase II

Anaphase II: Sister chromatids move to opposite poles of the cell. Once they separate, each sister chromatid is considered to be a chromosome.

 

Telophase II

Telophase II: Spindle fibres begin to disappear, and a nuclear membrane forms around each set of chromosomes.

 

Cytokinesis

Cytokinesis: In cytokinesis, the two daughter cells are separated.

 

My Digital Footprint

Today in class we learned about our digital footprint. It’s amazing how society today can follow and document EVERYTHING we do. It’s also kind of scary to know that we’ve had a digital footprint since before we were born and NOTHING we say or post is truly safe. We always have to watch what we say or do online.