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Biology
2.2 Cell division
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Ela Epcim
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Cards (15)
Do all cells in multicellular organisms retain the ability to divide?
No
, not all
cells
retain the ability to divide.
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What is the cell cycle in eukaryotic cells that retain the ability to divide?
The
cell
cycle includes stages such as
interphase
and
mitosis.
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When does DNA replication occur in the cell cycle?
During the
interphase
of the cell cycle.
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What is mitosis?
Mitosis is the part of the
cell
cycle where a
eukaryotic
cell divides to produce two
daughter
cells with identical
DNA
copies.
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What happens to chromosomes during the stages of mitosis?
Chromosomes behave differently during
interphase
,
prophase
,
metaphase
,
anaphase
, and
telophase.
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What is the role of spindle fibres during mitosis?
Spindle fibres attached to
centromeres
help in the separation of
chromatids.
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What is cytokinesis?
Cytokinesis is the
division
of the
cytoplasm
, producing
two
new cells.
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What is the focus of section 3.4.3 in the study material?
Meiosis
is covered in section
3.4.3.
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What are the stages of the cell cycle that students should recognize?
Interphase
Prophase
Metaphase
Anaphase
Telophase
(including cytokinesis)
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How should students explain the appearance of cells in each stage of mitosis?
Students should be able to describe the
distinct characteristics
of cells in each stage of mitosis.
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Why is mitosis considered a controlled process?
Mitosis is controlled to prevent
uncontrolled
cell division, which can lead to
tumors
and
cancers.
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What is the focus of many cancer treatments?
Many cancer treatments aim to
control
the rate of cell
division.
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What does binary fission in prokaryotic cells involve?
Replication of
circular
DNA and
plasmids
Division of the
cytoplasm
to produce two
daughter
cells
Each daughter cell has a
single
copy of circular DNA and a variable number of
plasmids
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Do viruses undergo cell division?
No
, viruses do not undergo
cell division.
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How do viruses replicate after injecting their nucleic acid into a host cell?
The infected host cell
replicates
the
virus
particles.
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