cell cycle, cell differentiation, & gmos hot seat
TRANSCRIPT
If an organism reproduces If an organism reproduces asexually, its offspring will most asexually, its offspring will most
likely belikely beA.A. Genetically identical to the parentGenetically identical to the parent
B.B. Genetically different from each Genetically different from each otherother
C.C. produced as a result produced as a result of fertilizationof fertilization
D.D. produced from specialized cells produced from specialized cells known as gametes known as gametes
Sequence the stages of the Sequence the stages of the cell cycle shown below. cell cycle shown below.
A.
E.D.
C.
B.
Sequence the stages of the cell Sequence the stages of the cell cycle shown below. (Answer = cycle shown below. (Answer =
E,B,D,C,A)E,B,D,C,A)
A.
E. D. C.B.
During what stage of the cell cycle is During what stage of the cell cycle is the DNA copied?the DNA copied?
A.A. G1G1
B.B. SS
C.C. G2G2
D.D. MM
Once mitosis and cytokinesis are Once mitosis and cytokinesis are complete, what part of the cell cycle complete, what part of the cell cycle do the daughter cells enter?do the daughter cells enter?
A.A. G1G1
B.B. SS
C.C. G2G2
D.D. MM
During which phase of the cell cycle During which phase of the cell cycle does a cell grow and prepare for does a cell grow and prepare for mitosis?mitosis?
A.A.G1G1
B.B.SS
C.C.G2G2
D.D.MM
During which phase of the cell cycle During which phase of the cell cycle does a cell grow and add organelles?does a cell grow and add organelles?
A.A.G1G1
B.B.SS
C.C.G2G2
D.D.MM
The uncontrolled division of certain body The uncontrolled division of certain body cells, which then invade the surrounding cells, which then invade the surrounding tissues and interfere with the normal tissues and interfere with the normal functioning of the body, is known asfunctioning of the body, is known as
A.A.cancercancer
B.B.mitosismitosis
C.C.cytokinesiscytokinesis
D.D.CleavageCleavage
If a cell is not dividing, where will it be If a cell is not dividing, where will it be in the cell cycle?in the cell cycle?
A.A. G0G0
B.B. G1G1
C.C. SS
D.D. G2G2
Which type of cell has the potential to Which type of cell has the potential to produce any type of specialized cell?produce any type of specialized cell?
stem cellsstem cells
When unspecialized stem cells give When unspecialized stem cells give rise to specialized cells, what is this rise to specialized cells, what is this
process called? process called?
A.A. DifferentiationDifferentiation
B.B. OsmosisOsmosis
C.C. MitosisMitosis
D.D. Meiosis Meiosis
A liver cell and a skin cell from the A liver cell and a skin cell from the same person have the samesame person have the same
Organelles Organelles DNADNA FunctionFunction Shape Shape
What makes stem cells different from What makes stem cells different from other cells in the body?other cells in the body?
A.A. They are larger than other cells, and They are larger than other cells, and can absorb broken cells to repair them. can absorb broken cells to repair them.
B.B. They repair cells by breaking open and They repair cells by breaking open and making their cell parts available for making their cell parts available for absorption into other cells. absorption into other cells.
C.C. They are undifferentiated cells that can They are undifferentiated cells that can turn into a number of different kinds of turn into a number of different kinds of cells, as needed. cells, as needed.
Which of the following is Which of the following is mitosis mitosis notnot used for? used for?
A.A. Repair (of a wound) in multicellular Repair (of a wound) in multicellular organismsorganisms
B.B. Asexual reproduction in unicellular Asexual reproduction in unicellular organismsorganisms
C.C. Development (e.g., baby in mother's Development (e.g., baby in mother's womb)womb)
D.D. Production of gametes (sperm and egg)Production of gametes (sperm and egg)
E.E. All of the above use mitosis All of the above use mitosis
The stage of the cell cycle where each chromosome is composed of two
chromatids in preparation for mitosis.
A.A. G1G1
B.B. SS
C.C. G2G2
D.D. MM
During _______ both the contents of the During _______ both the contents of the nucleus and the cytoplasm are divided. nucleus and the cytoplasm are divided.
A.A. G1G1
B.B. SS
C.C. G2G2
D.D. MM
A cell has 5 chromosomes in G1. How many chromosomes will the cell have after it has completed the S phase?
A.A. 55
B.B. 1010
C.C. 1515
D.D. 2020
A cell with 46 chromosomes in the G1 A cell with 46 chromosomes in the G1 phase undergoes MITOSIS. Which of phase undergoes MITOSIS. Which of
these statements is true?these statements is true?
A.A. 4 daughter cells will be created and each 4 daughter cells will be created and each daughter cell will have 23 chromosomes.daughter cell will have 23 chromosomes.
B.B. 2 daughter cells will be created and each 2 daughter cells will be created and each daughter cell will have 46 chromosomes.daughter cell will have 46 chromosomes.
C.C. 4 daughter cells will be created and each 4 daughter cells will be created and each daughter cell will have 46 chromosomes.daughter cell will have 46 chromosomes.
D.D. 2 daughter cells will be created and each 2 daughter cells will be created and each daughter cell will have 23 chromosomes.daughter cell will have 23 chromosomes.
Which of the following Which of the following represents the correct order represents the correct order
of the phases of mitosis? of the phases of mitosis? A)A) prophase -> anaphase -> metaphase -> prophase -> anaphase -> metaphase ->
telophase telophase B)B) prophase -> metaphase -> anaphase -> prophase -> metaphase -> anaphase ->
telophase telophase C)C) prophase -> metaphase -> telophase -> prophase -> metaphase -> telophase ->
anaphase anaphase D)D) metaphase -> prophase -> telophase -> metaphase -> prophase -> telophase ->
anaphase anaphase E)E) metaphase -> prophase -> anaphase -> metaphase -> prophase -> anaphase ->
telophasetelophase
A cell with 10 chromosomes undergoes mitosis. How many daughter cells are
created? ___ Each daughter cell has ___ chromosomes.
2, 10 10, 2 1, 10 2, 20
Each chromosome consists Each chromosome consists of 2 _____.of 2 _____.
cellscells chromatidschromatids daughter cellsdaughter cells CentriolesCentrioles
The process of mitosis The process of mitosis ensures that:ensures that:
each new cell is genetically different each new cell is genetically different from its parentfrom its parent
each new cell receives the proper each new cell receives the proper number of chromosomesnumber of chromosomes
cells will divide at the appropriate cells will divide at the appropriate timetime
DNA is replicated without errorsDNA is replicated without errors
During which phase of mitosis During which phase of mitosis does the chromatin begin to does the chromatin begin to
condense to form the condense to form the chromosomes?chromosomes? anaphase anaphase
metaphase metaphase interphase interphase prophaseprophase
Which of the following phases of Which of the following phases of mitosis is mitosis is notnot matched with one of matched with one of
the activities that occur during the activities that occur during that phase:that phase:
A.A. prophase: chromosomes replicate prophase: chromosomes replicate (copy) (copy)
B.B. telophase: cytokinesis beginstelophase: cytokinesis beginsC.C. metaphase: chromosomes line up in metaphase: chromosomes line up in
the center of the cell the center of the cell D.D. anaphase: chromatids separateanaphase: chromatids separate
Which of the following Which of the following describes cancer?describes cancer?
A.A. Group of cells that grow and divideGroup of cells that grow and divide
B.B. Tumors that are present in vital Tumors that are present in vital organsorgans
C.C. Cells that divide uncontrollablyCells that divide uncontrollably
D.D. Discolored cells that are infected Discolored cells that are infected with bacteriawith bacteria
In which stage do the In which stage do the spindle fibers align the spindle fibers align the
sister chromatids along the sister chromatids along the center of the cell?center of the cell?
In which stage are sister In which stage are sister chromatids pulled to apart chromatids pulled to apart
by the spindle fibers?by the spindle fibers?
In which stage does In which stage does chromatin condense into chromatin condense into
chromosomes?chromosomes?
The pinching off of the cell membrane The pinching off of the cell membrane that creates two daughter cells is that creates two daughter cells is
calledcalled
A.A. InterphaseInterphase
B.B. AnaphaseAnaphase
C.C. CytokinesisCytokinesis
D.D. differentiationdifferentiation
Which of these cells in the Which of these cells in the human body, when mature, do human body, when mature, do
not divide?not divide?A.A. Liver Liver
B.B. SkinSkin
C.C. NerveNerve
D.D. BloodBlood
In 1994 a new tomato variety that ripens slowly was In 1994 a new tomato variety that ripens slowly was developed in the laboratory. This new variety of developed in the laboratory. This new variety of
tomato contains a section of DNA not found in the tomato contains a section of DNA not found in the tomato from which it was developed. This is an tomato from which it was developed. This is an
example of a(n) example of a(n)
A.A. invasive speciesinvasive species
B.B. differentiated celldifferentiated cell
C.C. genetically modified organismgenetically modified organism
D.D. stem cell organismstem cell organism
True or False. Stem cells typically give rise to the True or False. Stem cells typically give rise to the type of cell the correlates to the tissue in which type of cell the correlates to the tissue in which
they reside. (For example, a stem cell located in the they reside. (For example, a stem cell located in the bone marrow will differentiate into any number of bone marrow will differentiate into any number of
different blood cells.) different blood cells.) TRUETRUE
Which sequence of the cell Which sequence of the cell cycle is common to cycle is common to
eukaryotes?eukaryotes?A.A. G1 G1 G2 G2 S S M M cytokinesis cytokinesis
B.B. G2 G2 G1 G1 S S M M cytokinesis cytokinesis
C.C. G1 G1 S S G2 G2 M M cytokinesis cytokinesis
D.D. M M G2 G2 G1 G1 S S cytokinesis cytokinesis
The diagrams at the below represent The diagrams at the below represent stages of a cellular process. Which is stages of a cellular process. Which is
the correct sequence of these stages? the correct sequence of these stages? A.A. B--> D--> C--> A B--> D--> C--> A
B.B. D--> B--> A--> C D--> B--> A--> C
C.C. A--> B--> C--> D A--> B--> C--> D
D.D. C--> B--> D--> A C--> B--> D--> A