Anaphase I and Telophase I

Meiosis Anaphase I and Telophase I http://www.anselm.edu/homepage/jpitocch/genbio/meiosisphases.JPG

Anaphase I • Anaphase I begins when the two homologous chromosomes of each bivalent separate and start moving toward opposite poles of the cell as a result of the action of the spindle. • Notice that in anaphase I the sister chromatids remain attached at their centromeres and move together toward the poles. This is the key difference between mitosis and meiosis after the first metaphase. http://www.phschool.com/science/biology_place/biocoach/meiosis/anai.html

Telophase I • At Telophase I a haploid set of chromosomes is at each pole, with each chromosome still having two chromatids. A nuclear envelope reforms around each chromosome set, the spindle disappears, and cytokinesis follows. • Many cells that undergo rapid meiosis do not decondense the chromosomes at the end of telophase I and move on to meiosis II. http://www.phschool.com/science/biology_place/biocoach/meiosis/anai.html

Anaphase I and Telophase I

Anaphase I and Telophase I

Presentation Transcript

APC = anaphase-promoting complex

I hear and I forget, I see and I understand, I do and I remember.

Early Prophase Middle Prophase Late Prophase Metaphase Early Anaphase Anaphase Telophase

I hear and I forget; I see and I remember; I do and I understand.

‘I hear and I forget. I see and I remember. I do and I understand.’ Chinese proverb

Anaphase

“I hear and I forget. I see and I remember. I do and I understand.”

I hear and I forget. I see and I remember. I do and I understand. -- Confucius

Traveling Trunk: “I hear and I forget. I see and I remember. I do and I understand.”-Confucius

I hear, and I forget; I see, and I remember; I do , and I understand. - Confucious

“I hear, and I forget. I see, and I remember. I do, and I understand’. -- Chinese Proverb

1) telophase 2) metaphase 3) cytokinesis 4) anaphase 5) prophase 6) interphase (G1 G2)

I I I I

I hear and I forget; I see and I remember; I do and I understand.

“ I hear and I forget, I see and I remember, I experience and I understand. ” - Confucius

I HEAR AND I FORGET , I SEE AND I REMEMBER , I DO AND I UNDERSTAND

Plant Mitosis Anaphase

I hear and I forget. I see and I remember. I do and I understand. I reflect and I learn.

I hear and I forget . I see and I remember . I do and I understand .

I I I i I

I I I I I I I I

I hear and I forget. I see and I remember. I do and I understand. - Confucius