1. Cell Cycle Review

2. Cell Cycle Cell Cycle is controlled by proteins at different
checkpoints

3. Cancer Cells
Problem:
It is the uncontrollable growth of abnormal cells.
Regulation of cell growth and division is lost
Cells do not respond normally to control mechanisms/checkpoints

4. Cells that undergo Mitosis and Cytokinesis are referred to as somatic cells, or body cells. The cells produced (daughter cells) are genetically identical to the original cell (parent cell). 2
1. How many daughter cells are created from mitosis and cytokinesis? 2. If a chimpanzee liver cell has chromosomes, how many chromosomes will be in each daughter cell? 54

5. Centrioles
Centromere
Spindle fibers
Chromatids

6. Mitosis & Cytokinesis Mitosis – cell division of the nucleus
metaphase
parent cell
prophase
anaphase
identical daughter cells
telophase
Mitosis – cell division of the nucleus
Cytokinesis – division of the cytoplasm
A cell with 16 chromosomes undergoes mitosis and cytokinesis. How many daughter cells are produced?
How many chromosomes are in each? 2 16
Mitosis is a form of __________________ because identical cells are made from one cell.
asexual reproduction

7. Cell Plate
Belt of Proteins

8. Cell Division of a Somatic (Body) Cell Interphase Prophase Cytokinesis
Telophase
Metaphase
Anaphase
Metaphase
Anaphase

9. Predict what would happen if cytokinesis were skipped?
You would end up with a bigger cell that would have two nuclei.

10. Predict what would happen if a cell produced faulty spindle fibers?
The chromatids would not separate.

11. Predict what would happen if the Synthesis (S) phase were removed?
DNA would not be copied and the new cell would not have a copy of the DNA.

12. What phase is this?
Prophase

13. What phase is this?
Anaphase

14. What phase is this?
Cytokenisis

15. What phase is this?
Telophase

16. What phase is this?
Interphase

17. What phase is this?
Metaphase

18. Put the phases in the correct order!B C A F D E B F C E A D

19. Where does DNA replication occur?G1 S G2 M

20. What part of the cell cycle results in daughter cells?
mitosis
prophase
cytokinesis
G2 checkpoint

21. What is the purpose of mitosis?
Guarantees that each daughter cell has half the amount of DNA than the parent
It ensures that new nuclei have correct amount of DNA
It ensures the reproduction of mitochondria and chloroplast
It prevents the occurrence of cancer cells

22. Radiating fibers Nuclear envelope chromatids Spindle apparatus
What structure(s) allows chromosomes to separate and move during mitosis?
Radiating fibers
Nuclear envelope
chromatids
Spindle apparatus

23. Cells spend 90% of their time in which phase?
Cytokinesis
Telophase
Prophase
Interphase

24. mRNA transcription DNA replication DNA translation DNA transformation
What process results in two complete strands of DNA from one original strand?
mRNA transcription
DNA replication
DNA translation
DNA transformation

25. Haploid vs. Diploid
How many chromosomes are in the body cells of an organism that have a haploid number of 6?
The diploid number of chromosomes in a human skin cell is 46. The number of chromosomes found in a human egg cell is ?
A gamete cell has 14 chromosomes. How many would there be in a somatic cell?

26. Sex Chromosomes What are the two sex chromosomes?
What are the sex chromosomes for a male?
What are the sex chromosomes for a female?

27. Karyotypes
A photo of the chromosomes in a dividing cell that show the chromosomes arranged by size.
Purpose of a Karyotype:
(1) to detect abnormalities in chromosome
number
(2) to determine gender

28. Normal or Abnormal? Male or Female?

29. Normal or Abnormal? Male or Female?

30. Normal or Abnormal? Male or Female?

31. Normal or Abnormal? Male or Female?

32. Vocabulary Binary fission Homologous chromosomes Trisomy Interphase
Mitosis
Cytokinesis
Diploid (2n)
Haploid (n)