ESSENTIAL CELL BIOLOGY 5TH
EXAM SCRIPT WITH CORRECT
ANSWERS
⩥2) Starting with a fertilized egg (zygote), a series of six cell divisions
would produce an early embryo with how many cells? - D) 64
⩥3) In a diploid cell with 5 chromosome pairs (2n = 10), how many
centromeres will be found in a nucleus at G2 of the cell division cycle? -
B) 10
⩥4) Scientists isolate cells in various phases of the cell cycle. They
isolate a group of cells that have 1 1/2 times more DNA than G1 phase
cells. What is the most likely part of the cell cycle from which these
cells were isolated? - D) in the S phase of the cell cycle
⩥5) G1 is associated with which of the following cellular events? - A)
normal growth and cell function
⩥6) What is the name of the microtubule-organizing center found in
animal cells as an identifiable structure present during all phases of the
cell cycle? - B) centrosome
, ⩥7) In the cells of many eukaryotic species, the nuclear envelope has to
disappear to permit which of the following events in the cell cycle? - B)
attachment of microtubules to kinetochores
⩥8) The mitotic spindle plays a critical role in which of the following
processes? - D) separation of sister chromatids
⩥9) Metaphase is characterized by ________. - A) alignment of
chromosomes on the equator of the cell
⩥10) In what way do kinetochore microtubules facilitate the process of
splitting the centromeres? - B) They create tension by pulling toward
opposite poles.
⩥11) Certain cell types normally have several nuclei per cell. How could
such multinucleated cells be explained? - C) The cell underwent
repeated mitosis, but cytokinesis did not occur.
⩥12) How is plant cell cytokinesis different from animal cell
cytokinesis? - B) Plant cells deposit vesicles containing cell wall
building blocks on the metaphase plate; animal cells form a cleavage
furrow.
EXAM SCRIPT WITH CORRECT
ANSWERS
⩥2) Starting with a fertilized egg (zygote), a series of six cell divisions
would produce an early embryo with how many cells? - D) 64
⩥3) In a diploid cell with 5 chromosome pairs (2n = 10), how many
centromeres will be found in a nucleus at G2 of the cell division cycle? -
B) 10
⩥4) Scientists isolate cells in various phases of the cell cycle. They
isolate a group of cells that have 1 1/2 times more DNA than G1 phase
cells. What is the most likely part of the cell cycle from which these
cells were isolated? - D) in the S phase of the cell cycle
⩥5) G1 is associated with which of the following cellular events? - A)
normal growth and cell function
⩥6) What is the name of the microtubule-organizing center found in
animal cells as an identifiable structure present during all phases of the
cell cycle? - B) centrosome
, ⩥7) In the cells of many eukaryotic species, the nuclear envelope has to
disappear to permit which of the following events in the cell cycle? - B)
attachment of microtubules to kinetochores
⩥8) The mitotic spindle plays a critical role in which of the following
processes? - D) separation of sister chromatids
⩥9) Metaphase is characterized by ________. - A) alignment of
chromosomes on the equator of the cell
⩥10) In what way do kinetochore microtubules facilitate the process of
splitting the centromeres? - B) They create tension by pulling toward
opposite poles.
⩥11) Certain cell types normally have several nuclei per cell. How could
such multinucleated cells be explained? - C) The cell underwent
repeated mitosis, but cytokinesis did not occur.
⩥12) How is plant cell cytokinesis different from animal cell
cytokinesis? - B) Plant cells deposit vesicles containing cell wall
building blocks on the metaphase plate; animal cells form a cleavage
furrow.
