Download - 1234567 891011121314 15161718192021 22232425262728 29303132333435 36373839404142 43444546474849
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1 2 3 4 5 6 78 9 10 11 12 13 14
15 16 17 18 19 20 2122 23 24 25 26 27 2829 30 31 32 33 34 3536 37 38 39 40 41 4243 44 45 46 47 48 49
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How many daughter cells are produced during mitosis? Are they haploid or
diploid?
Two diploid cells
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During which phase of mitosis do chromosomes line up in the middle
of the cell?
Metaphase
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How many chromosomes do humans have in their body cells?
46 or 23 pairs
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When does a cell copy its DNA? Be specific.
S-phase of interphase
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What kind of cells are made from mitosis?
Somatic (body) cells
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What happens when the cell cycle is not regulated (out of control)?
Cancer
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What is the term used to describe a cell that has TWO sets of
chromosomes (one from mom and one from dad)?
Diploid (2n)
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What is the term used to describe cells that have just ONE set of
chromosomes?
Haploid (n)
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Name the phases of mitosis in order.
Prophase, metaphase, anaphase, telophase
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During which phase of mitosis does chromatin condense into
chromosomes?
prophase
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During which phase of mitosis do spindle fibers pull sister
chromatids apart?
anaphase
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What is the process when the parent cell is cleaved into two new
daughter cells?
cytokinesis
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During which phase of mitosis does the nuclear envelope begin to
reappear?
Telophase
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What is the phase where cell growth occurs?
G1 and G2 of interphase
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Meiosis
What is the process in which gametes are produced?
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What phase is represented by the picture?
Prophase
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What phase is represented in the picture?
Metaphase
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What phase is represented in the picture?
Anaphase
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What phase is represented by the picture?
Telophase
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How many cell divisions are involved in meiosis?
2
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What are the organelles that produce spindle fibers?
Centrioles
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When does the process of crossing-over occur?
Prophase 1
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Why does crossing-over occur?
To increase genetic diversity
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During what process of meiosis do homologous chromosomes line up in the center of the cell?
Metaphase 1
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At the end of meiosis 1 how many cells are produced?
2
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During which phase of meiosis are sister chromatids pulled apart?
Anaphase 2
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During which phase of meiosis do homologous chromosomes get
separated?
Anaphase 1
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If a cell begins meiosis with 34 chromosomes, how many will the
resulting four cells have?
17
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What is a karyotype?
A picture of an organism’s chromosomes in a mitotic cell
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What are all chromosomes besides sex chromosomes referred to as?
Autosomes
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What are a male’s sex chromosomes?
XY
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What are a female’s sex chromosomes?
XX
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What two things can be determine by analyzing a karyotype?
Gender and genetic disorders
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What is the structure that holds sister chromatids together?
Centromere
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What genetic disorder is shown in this karyotype?
Down Syndrome
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What is Turner Syndrome?
When a female is missing one of her X chromosomes
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What is Klinefelter Syndrome?
When a male has an extra X chromosome
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If an organisms diploid cells have 30 chromosomes, how many
chromosomes would be in it’s sex cell?
15
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What is the longest phase of the cell cycle?
Interphase
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What is the longest phase of mitosis?
Prophase
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What is spermatogenesis?
The production of sperm cells
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What is oogenesis?
The production of egg cells
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What is the purpose of mitosis?
To produce more body cells
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What is the purpose of meiosis?
To produce sex cells
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Describe cytokinesis in plant cells.
Cell plate forms midway between the divided nuclei
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What phase of meiosis does the picture represent?
Anaphase 1
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What phase of meiosis does the picture represent?
Metaphase 1
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How many cells are produced from meiosis? Are they haploid or
diploid?
Four haploid cells
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What phase of meiosis is represented in the picture?
Telophase 2