Mitosis and Meiosis - BIO 101

1. Identify the stage of mitosis for cell #1 below.
2. Identify the stage of mitosis for cell #2 below.
3. Identify the stage of mitosis for cell #3 below.
4. Identify the stage of mitosis for cell #4 below.
   
   
   
   
   

   
   

5. During anaphase of mitosis in humans or other diploid organisms, how many chromatids does each chromosome have as they move toward the poles?
   
6. During anaphase I of meiosis, how many chromatids does each chromosome have as they move toward the poles?
   
7. During anaphase II of meiosis, how many chromatids does each chromosome have as they move toward the poles?
   
8. Explain why furrowing is a suitable mechanism for cytokinesis of animal cells but not plant cells.
   
9. A student is simulating meiosis 1 with chromosomes that are red long and yellow long; red short and yellow short. Why would you not expect to find both red long and yellow long in one resulting daughter cell?
   
10. If there are 13 pairs of homologous chromosomes in a primary spermatocyte, how many chromosomes are there in a sperm? How many chromatids?