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Meiosis I
Interphase
Telophase I
Anaphase I
Metaphase IProphase I
Cytokinesis Images from: http://www.phschool.com/science/biology_place/biocoach/meiosis/teloi.html
What happens here?? What happens here??
What type of cell am I??
Meiosis II Coming from Meiosis I
Prophase II
Metaphase II
Anaphase IITelophase II
CytokinesisImages from: http://www.phschool.com/science/biology_place/biocoach/meiosis/teloi.html
1. What phase of MITOSIS is this?
2. What are these known as?
3. Is this representing Meiosis I or Meiosis II?
5.What are these known as?
4. What phase of Meiosis II is this?
MITOSIS & CELL CYCLE: NAME THE EVENT
7. The longest phase of the cell cycle.
6. The phase when the nuclear envelope reappears.
MITOSIS & CELL CYCLE: NAME THE EVENT
8. The phase of interphase where DNA is replicated.
9. Another name for the “resting phase”
The Cell Cycle
10. 3 reasons why our cells divide:
11.What is the question asked at the end of the S phase?
12. Cancer is a disease of the _____ _____
13. What phase is represented here?
15. What are these known as?
14. What is being pulled apart?
16.How many cells are created at the end of meiosis II?
17. @ the end of Meiosis I are the cells diploid or haploid?
18. What is occurring here?
19.When does crossing over occur?
20. During Meiosis when are homologous pairs pulled apart?
21. Describe 2 differences between the daughter cells of mitosis & meiosis.
22. Describe a similarity between the parent cell of mitosis & meiosis.
23. Why MUST sex cells be haploid
24. What are 2 other names for Diploid cells?
25. Name the 2 parts of the Somatic Cell Cycle:
26. When are sister chromatids separated during Meiosis?
27. What event occurs during Metaphase I that does not occur during Metaphase II?
1. What phase of MITOSIS this?ANAPHASE
2.What are these known as?SPINDLES
LET’S CHECK YOUR
ANSWERS…
3.Is this representing Meiosis I or Meiosis II?Meiosis II
5.What are these known as?CENTRIOLES
4.What phase of Meiosis II is this?Metaphase
MITOSIS & CELL CYCLE: NAME THE EVENT
7.The longest phase of the cell cycle.Interphase
6.Nuclear envelope reappears.Telophase
8.The phase of interphase where DNA is replicated.
S phase
9.Another name for the “resting phase”G0
REGULATORS
11.What is the question asked at the end of the S phase?
Did the DNA replicate properly?
10. 3 reasons why our cells divide:Injury, growth, replace damaged cells
12. Cancer is a disease of the _____ _____Cell Cycle
13. What phase is represented here?Anaphase I of Meiosis I
15. What are these known as?Sister Chromatids
14. What is being pulled apart?Homologous pairs
16. How many cells are created at the end of meiosis II?4 cells
18. What is occurring here?Crossing Over
17. @ the end of Meiosis I are the cells diploid or haploid?
Haploid
19. When does crossing over occur?Prophase I
20. During Meiosis when are homologous pairs pulled apart?
Anaphase I
22. Describe a similarity between the parent cell of mitosis & meiosis.
Diploid
21. Describe 2 differences between the daughter cells of mitosis & meiosis.
1) Mi= 2 Me=4 2) Mi= diploid Me=haploid
23. Why MUST sex cells be haploid½ from Mommy and ½ from Daddy.
24. What are 2 other names for Diploid cells?Somatic and Body
26. When are sister chromatids separated during Meiosis?
Anaphase II
25. Name the 2 parts of the Somatic Cell Cycle
Interphase and Mitosis
27. What event occurs during Metaphase I that does not occur during Metaphase II?
Independent assortment.
The cell cycle consists of two major divisions: ___ (growth) and ___ (splitting). 1) ___is the longest part of the cell cycle. This is when the cell grows and it’s DNA ___. It is broken down into three sub-divisions:___ , when the cell grows, ___, when the cell copies its DNA and___ , when the cell grows some more. 2) Cell division is the next part of the cell cycle and has two major parts. The division of the nucleus is called , ___ while the division of the cytoplasm is called ___.
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The first phase of mitosis, the longest phase, is called ___. During this phase ___ condenses to form visible chromosomes, the ___ ___ disappears and the ___ separate moving to opposite ends of the cell. During the second phase of mitosis, ___ , the chromosomes ___ ___ down the center of the cell. During the third phase of mitosis, ___ , the ___ that join the sister ___ split and the sister chromotids become individual ___ . These chromosomes then move to opposite sides of the cell. In the last phase of mitosis, ___ , the chromosomes spread out into ___ and the nuclear membrane ___ .
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Label the following stages of the cell cycle:
