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Name ________________________________
Block _____
Unit 6: Cell Reproduction
HRW: Chapter 10 and Section 8.3
SES: Chapters 11 and 12
Unit Learning Targets (L.T.):
Chromosomes
1. I can identify the parts of a chromosome.
2. I can explain the importance of chromosomes.
3. I can tell the difference between autosomes and sex chromosomes.
Why Do Cells Divide?
4. I can explain the importance of cell division (binary fission, mitosis, and meiosis)
to living organisms.
The Cell Cycle
5. I can identify the phases of the cell cycle from diagrams and describe what
happens in each phase.
6. I can explain why cancer is considered a disease of the cell cycle.
Mitosis
7. I can put the stages of mitosis in the proper order and describe what happens in
each phase
8. I can identify the purpose of mitosis and which cells divide this way.
9. I can list differences between how animal and plant cells divide.
Meiosis
10. I can explain how meiosis I and meiosis II are the same, yet different.
11. I can explain when and how the number of chromosomes is reduced in meiosis.
12. I can identify the purpose of meiosis and which cells divide this way.
13. I can explain how meiosis produces genetic variation in offspring and why
genetic variation is necessary.
14. I can explain how a multicellular organism develops from a zygote.
15. I can explain what causes mutations.
16. I can list similarities and differences between mitosis and meiosis.
Vocabulary:
Group 1:
karyotype
chromosomes
binary fission
autosomes
centrioles
sister chromatids
haploid
sex chromosomes
centromere
nuclear envelope
diploid
spindle
gamete
chromatin
Group 2:
telophase
G2 phase
prophase
S phase
interphase
sex chromosome
G1 phase
mitosis
anaphase
metaphase
G0 phase
autosome
Group 2:
zygote
genetic variation
meiosis
sexual reproduction
prophase/metaphase I
tetrad
crossing over
cancer
homologous chromosomes
Topic and Learning Targets
Chromosomes
Cell Division in Prokaryotes
and Eukaryotes/Overview of
Mitosis
Phases of Mitosis/Control of
the Cell Cycle
Phases of Mitosis
Introduction to Meiosis
Meiosis and Genetic Variation
Meiosis and Genetic Variation
Compare and Contrast
Meiosis and Mitosis/Review
Unit Test
Activities/Labs/In-class Work
Reading Activity: What is a
Chromosome? (SES 136-137)
Unit 6 Notes and Discussion
Reading Activity: Cell Division
Unit 4 Notes and Discussion
Homework*
Review Part 1
Video/Animation: Mitosis
Vocabulary Review
Mitosis Card Activity
Activity: Cell Cycle
LT Check #1: Review Parts 1 and 2
Review: Mitosis
Review: Mitosis
Video/Animation: Meiosis
Unit 6 Notes and Discussion
Activity: Meiosis Activity
LT Check #2: Review Part 3/Mitosis
Activity: Meiosis Activity
Activity: Meiosis Activity
Unit 6 Notes and Discussion
Activity: Compare and Contrast
Meiosis and Mitosis
Review Activities
Unit Test
Quizlet Group 1
Begin Review Part 3
Packet Part 2
Review Part 3
Quizlet Group 2
Begin Review Part 4
Review Part 4
Quizlet Group 3
STUDY FOR TEST
TBD
* Please note – Additional homework may be added as necessary. Any changes
discussed in class and written on the board should be added to homework listed above
by the student and will be due as discussed in class.
Part 1: Introduction to Cell Cycle/Chromosomes
1. Where is DNA in the cell found? What is the most typical form of DNA?
2. Why does the DNA wrap around proteins to make chromatin? What are those
proteins called?
3. What happens to the DNA when the cell is getting ready to divide?
4. What are the two identical halves of a chromosome called? What holds them
together? Draw an illustration as part of your answer.
5. What do genetic counselors use to analyze patients’ chromosomes and determine if
they have a genetic abnormality?
6. Which chromosome determines the sex of human? What types of chromosomes do
males have? What types of chromosomes do females have? What are your other
chromosomes called?
7. Describe the difference between an X chromosome and a Y chromosome.
8. Why do you have pairs of chromosomes?
Part 2: Interphase
1. Prokaryotic cells divide by a process called ________________________________
that results in 2 identical cells.
2. Body cells in eukaryotes divide by _______________________ to grow and repair
while specific other cells in eukaryotes divide by ___________________________ to
produce gametes.
3. List the three stages of the cell cycle in order starting after a cell splits.
1.
2.
3.
4. List the phases of interphase in order and a brief description of what happens in each
phase. Why would a cell enter a G0 phase?
5. Explain the difference between chromatin, chromosome and chromatid. What phase
of the cell cycle has each form of DNA?
Part 3: Mitosis
1. Explain the role of the spindle, the centromere and the centrioles in mitosis.
Spindle:
Centromere:
Centrioles:
2. Mitosis is the division of the ______________________ while cytokinesis is the
division of the _______________________.
3. How does cytokinesis differ in a plant cell versus an animal cell?
For the descriptions below, write the phase of the cell cycle (not just mitosis) described.
Phases may be used more than once.
4.
_______________________
Nuclear envelope begins to disappear
5.
_______________________
Chromatids reach the ends of the spindle and two
nuclei reform
6.
_______________________
Cell grows, more mitochondria are produced
7.
_______________________
8.
_______________________
Centromere splits, chromatids separate and begin
to move apart
9.
_______________________
Spindle begins to form
The cytoplasm divides and two new cells are
formed.
10. _______________________
Chromosomes line up in the middle or equator of
the spindle/cell
11. _______________________
DNA duplicates and is in the form of chromatin
12. _______________________
Chromatin coils up into chromosomes
13. _______________________ In plant cells, a new cell wall forms
14. How many chromosomes would each new cell have after a human body cell divides
by mitosis/cytokinesis? Is the new cell haploid or diploid?
15. How many chromosomes would each new cell of a diploid cell with 12 chromosomes
have after it divides by mitosis/cytokinesis? Is the new cell haploid or diploid?
16. In what phase of the cell cycle does the cell spend most of its life?
______________________________
17. For the following pictures, identify the phase of mitosis by writing the phase on the
line beneath the picture. All 4 phases of mitosis are represented. List 1-2 things that
happen in the phase underneath the line. In the box next to each picture, write a
number to place them in the correct order.
______________________________
Describe what is happening:
_______________________________
Describe what is happening:
________________________________
Describe what is happening:
_________________________________
Describe what is happening:
18. How do proteins relate to cancer? What happens if the wrong proteins are
synthesized?
19. What environmental factors contribute to cancer formation?
20. How do cancer cells differ from normal body cells? Why are these differences
beneficial to cancer cells and make them more difficult to remove?
Part 4: Meiosis
1. What are homologous chromosomes? How do they line up in mitosis? How do they
line up in meiosis?
2. What are tetrads? Why are they necessary in meiosis, but not mitosis?
3. Why is meiosis necessary for the formation of sex cells?
4. What is crossing over? When does it occur? How does it contribute to genetic
variation and thus species variation?
5. Describe how the following phases are different in meiosis and mitosis:
A) mitosis prophase and meiosis I prophase
B) mitosis metaphase and meiosis I metaphase
6. How do the two phases of meiosis in question #5 contribute to genetic and species
variation?
7. A human body cell contains ___________ chromosomes, but a human sex cell
(gamete) contains ____________ chromosomes.
8. What is the difference between a haploid cell and a diploid cell? Which type is a body
cell? Which type is an egg or sperm cell?
9. Define genetic recombination.
10. When a human egg and sperm combine, a ________________________ forms with
46 chromosomes.
11. Make a Venn Diagram below to compare and contract meiosis and mitosis. Be sure
to include AT LEAST 3 similarities and 3 differences. More is even better!!