GRCC EXAM 3 REVIEW Biology 151 Questions With Complete Solutions
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Course
GRCC
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GRCC
GRCC EXAM 3 REVIEW Biology 151
Questions With Complete Solutions
What is Mitosis? A process of nuclear division in eukaryotic cells conventionally divided
into five stages: prophase, metaphase, anaphase, and telophase. Conserves chromosome number
by allocating replicated chromosomes equally t...
GRCC EXAM 3 REVIEW Biology 151
Questions With Complete Solutions
What is Mitosis? A process of nuclear division in eukaryotic cells conventionally divided
into five stages: prophase, metaphase, anaphase, and telophase. Conserves chromosome number
by allocating replicated chromosomes equally to each of the daughter nuclei.
What is occurring overall in mitosis? The cycle that eukaryotic cells go through in order
to divide. During mitosis, a cell duplicates its DNA and divides into two genetically identical
cells.
What is prophase? The first stage of mitosis, in which the chromatin condenses into
discrete chromosomes visible with a light microscope, the mitotic spindle begins to form, and the
nucleolus disappears but the nucleus remains intact.
What is Metaphase? The third stage of mitosis, in which the spindle is complete and the
chromosomes, attached to microtubules at their kinetochores, are all aligned at the plate.
, GRCC EXAM 3 REVIEW Biology 151
Questions With Complete Solutions
What is Anaphase? The forth stage of mitosis, in which the chromatids of each
chromosomes have separated and the daughter chromosomes are moving to the poles of the cell.
What is Telophase? The fifth and final stage of mitosis, in which daughter nuclei are
forming and cytokinesis has typically begun.
What is cytokinesis? The division of the cytoplasm to form two separate daughter cells
immediately after mitosis, meiosis I, or meiosis II.
What is cytokinesis in plant cells? Cannot proceed with a cleavage furrow.
What is cytokinesis in animal cells? A contractile ring is a ring of actin filaments below
the cell membrane that constricts the middle of a dividing cell to complete cell division.
What is cytokinesis in cell plate? Built in the center by fusion of Golgi-derived vesicles.
, GRCC EXAM 3 REVIEW Biology 151
Questions With Complete Solutions
What is cleavage furrow? The first sign of cleavage in an animal cell, a shallow groove
around the cell in the cell surface near the old metaphase plate.
What triggers cell division (or prevents it)? Gatekeeper Cells
What is the role of cellular checkpoints? Ensures proper division of the cell.
What is cyclins? A cellular protein that occurs in a cyclically fluctuating concentration
and that plays an important role in regulating the cell cycle.
What is cyclin-dependent kinases? A protein kinase that is active only when attached to a
particular cyclin.
What is a Genome? The genetic material of an organism or virus; the complete
complement of an organism's or virus's genes along with its noncoding nucleic acid sequences.
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