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Mitosis and Asexual Reproduction
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Cell Reproduction is important when our bodies _____
or when certain cells need ____________.
Cell type
___Life span (days)
Brain
_____________________
Red blood
_________________
Platelets
Stomach lining
________________
Liver
_________________
Intestine lining ___________________
Skin _________________
Stem Cells cells taken from an early stage ___________ that
can differentiate (change into different cells)
Chromatin-Chromatid-Chromosome
Genetic material – contains _______
Chromatin
Chromatid
1. DNA stands
1. Coiled _________
2.___________& ____________
The Cell Cycle consists of two parts:
Chromosome
1.Replicated
_______ _____________
Below draw the cell cycle:
__________________ & ______________.
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The Cell Cycle - IPMAT

_________________

_________________

_________________

_________________

_________________

_________________
Interphase
Interphase is the first phase in the cell cycle.
It is the growth & preparation phase.
About _____ % of the cell cycle is in Interphase ________ of 16 hours.
Below draw the cell cycle clock:
1. G1 is the 1st phase of Interphase. What happens?
2. S is the 2nd phase of Interphase. What happens?
3. G2 is the third phase of Interphase. What happens?
Chromatin is immature ____________. Chromatin looks like ____________ & _________.
__________
__________
__________
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Mitosis
Mitosis is the second part of the ________ ________ and is a type of cell division that
results in _____ ____________ daughter cells.
The chromosome number in the ____________ cell is the
same as in the _________.
Humans have ____ chromosomes in each parent cell –
their daughter cells will have ____ chromosomes.
Mitosis is also called asexual reproduction or
_______________ _______ __________.
Organism
Chromosome numbers_
Human
______________
Chimpanzee
___________________
Dog
______________
Fruit fly
______________
Garden pea _________________________
Adder’s fern
___________________
Each organism has a specific chromosome number.
Is the chromosome number related to the complexity
of the organism??? _________ _
Phase 1 - Prophase
What four events take place during the 1st stage of Mitosis: Prophase?
1. _____________ begin to separate
2.______________ are connected by ____________ __________ .
3._____________ _____________disappears
4. chromosomes appear _________ and become __________________
Chromosome Structure
Define chromatid: is one ___________strand of a chromosome.
two _______________ = one chromosome
Define centromere: holds the ______________ together
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Below label the chromosome: Chromatid, centromere & chromosome
Phase 2 - Metaphase
What three events take place during the 2nd Stage of Mitosis: Metaphase?
1. ____________ move to opposite poles of the
cell connected by the ________ _______.
2. each ______________ moves to the __________
of a cell along one spindle fiber.
4. the___________________ attaches to the a
specific spindle fiber.
Phase 3 - Anaphase
What five events take place during the 3rd Stage of Mitosis: Anaphase?
1. cell is _____ shape
2. centromeres replicate & _________
3. ______________ separate
4. cytoplasmic division begins
5. _______ _______________ begins to pinch in
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Phase - Telophase
What five events take place during the 4th Stage of Mitosis: Telophase?
1. cell shape is figure 8
2. _______________ _______________ disappear
3. _________________ ____________ reforms around
2 new nuclei
4. centrioles replicate in late telophase
5. cell division occurs in late telophase
Cytokenesis is known as
complete ________ ____________.
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The Cell Cycle
Name:____________________________
Use this word bank to label the diagram below:
Hint:
number 7 is only pointing to one strand.
number 9 is pointing to 2 strands & the centromere
interphase
telophase
metaphase
anaphase
prophase
chromosome
centromere(2)
centrioles
chromatin
chromatid
cytokenesis
spindle fibers
nucleolus
nuclear membrane
reappearing nucleus
centrioles separating
disappearing nucleus
questions: list all of the letters pertaining to mitosis
________________________
list all of the letters pertaining to cell cycle ________________________
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How does mitosis differ in plants?
1. No ________________ in plant cells.
2. Plant cell do not _____________ in half, they form
a cell _________ between 2 daughter cells.
Summary of Mitosis:
1. The _________ ______________ number is retained from generation to generation
2. Each__________ cell receives an exact copy of the chromosomes of the ______ cell
3. Mutations are rare
Cancer: is ____________ cellular mitotic divisions
Causes of cancer:
1. Environment influences
2.
3.
4. Radiation
Prevention of cancer:
1.
2.
Methods of Asexual Reproduction
Define Binary Fission:
What are the results of binary fission? _______________________
______________________________________________________
What are three examples of organisms who reproduce this way?
1. ________________________________
2. ________________________________
3. ________________________________
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Define Budding:
What are three examples of organisms who reproduce this way?
1. ________________________________
2. ________________________________
3. ________________________________
What organism is in the
above picture?
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Another method of Asexual Reproduction is called Sporulation. What is this?
________________________________________________________________
What is an example? ______________________________________________
What are spores? _________________________________________________
________________________________________________________________
Define Regeneration:
What is an example? __________________________________
What organisms have greater regeneration powers? Invertebrates or vertebrates
Define Vegetative Propagation:
What can develop from just part of the original plant?
________________________________________________________________
What is an example? ______________________________
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