Name
Class
Date
Cell Cycle, Mitosis and Meiosis Study Guide
1. What happens during interphase?
The cell grows, prepares for division and does its job
2. Complete the cell cycle diagram by writing the correct name of a phase on each line.
G1 Phase
M Phase
S Phase
G2 Phase
3. What happens in the G1 phase that differs from the G2 phase?
G1 the cell does it regular job and in G2 it prepares itself for division
4. What are the two main stages of cell division?
Interphase and Mitosis
5. Which three phases make up interphase?G1, S, G2
6. The division of the cell nucleus during the M phase of the cell cycle is called Mitosis
7. Match the process with the correct phase.
B
S
A. Cells do most of their growing.
C
G2
B. Chromosomes are replicated, and the synthesis of DNA
molecules takes place.
A
G1
C. Many of the organelles and molecules required for cell
division are produced.
Use the diagrams below to answer questions 10 and 11.
8. What is the name for the process shown here? _MITOSIS__
9. Write the name of each phase on the line below the diagram.
A. ANAPHASE
B. TELOPHASE
C. PROPHASE
D. METAPHASE
.
Use this diagram to answer Questions 18–20.
10. What does the diagram show?
CROSSING OVER
11. During what phase of meiosis does this process occur?
PROPHASE I
12. What is the result of this process?
Genetic Variation
Comparing Meiosis and Mitosis
13. Complete the table to compare meiosis and mitosis.
Mitosis
Meiosis
Form of reproduction
Asexual
Sexual
2
4
Same
Cut in half
1
2
Same
Different
Number of daughter cells
Change in chromosome number
Number of cell divisions
Difference in alleles between
parent cell and daughter cells
For Questions 14-19, complete each statement by writing the correct word or words.
14. A diploid cell that enters mitosis with 16 chromosomes will divide to produce two daughter
cells. Each of these daughter cells will have 16 chromosomes.
15. If the diploid number of chromosomes for an organism is 16, each daughter cell after mitosis
will contain 16 chromosomes.
16. A diploid cell that enters meiosis with 16 chromosomes will pass through two cell divisions,
producing four daughter cells, each with 8 chromosomes.
17. Gametes have a haploid number of chromosomes.
18. If an organism’s haploid number is 5, its diploid number is ten
19. While a haploid number of chromosomes may be even or odd, a diploid number is always
even.
Karyotype
nondisjunction
Amniocentesis
20. fluid is taken from the womb by _____ in order to create a karyotype
21. an error in meiosis in which homologous chromosomes fail to separate
Aminocentesis
Nondisjunction
22. a picture that shows a complete set of chromosomes, grouped together in pairs Karyotype
Deletion
Duplication
Inversion
Monosomy
Translocation
Trisomy
23. A portion of a chromosome is lost. Deletion
24. A segment of a chromosome will reverse end to end. Inversion
25. A segment of a chromosome is duplicated producing extra copies of genes-on a chromosome.
Duplication
26. A part of a chromosome joins another non-homologous chromosome Translocation
27. Nondisjunction causes some gametes to receive an extra copy of a chromosome called
Trisomy
28. Nondisjunction causes other gametes to receive no copies of a chromosome called Monosomy