Cell Division - Mitosis and Meiosis
COMPLETELY SOLVED!!!
What is the cell cycle? - ANSWERThe regular sequence of growth and division that
cells undergo.
What are daughter cells? - ANSWERThe cells that result when a cell divides.
In what process does the cell make a copy of its DNA? - ANSWERReplication
What two-rod structures contain the cell's DNA? - ANSWERChromosomes
What is each rod called? - ANSWERChromatid
What is chromatin? - ANSWERStringy substance that consist of DNA tightly coiled
around proteins before it forms into chromosomes.
What is a chromatid? - ANSWEROne of two identical "sister" parts of copied
chromosomes.
What is a centromere? - ANSWERThe structure that holds the two chromatids together.
What is a centriole? - ANSWERCentrioles have spindle fibers attached to them.
Closer image of a centriole. - ANSWER
What is Mitosis? - ANSWERAsexual reproduction (cell division) of a body cell where
one copy of DNA is distributed into each of the two daughter cells.
Daughter cells are identical to the parent cell.
Purpose: To repair or replace body cells.
Mitosis only occurs in eukaryotic cells.
One continuous process. After Telophase, the division cycle starts again with
Interphase.
What are the stages of Mitosis? - ANSWERInterphase
Prophase
Metaphase
Anaphase
Telophase
, What happens during Interphase? - ANSWERThe cell grows, replicates its DNA, and
prepares to begin mitosis.
What happens during Prophase? - ANSWERChromatin forms into chromosomes.
Centrioles move to opposite sides and send out
spindle fibers.
Nuclear membrane (envelope) breaks down.
What happens during Metaphase? - ANSWEREach spindle fiber attaches to a
chromatid pair at its centromere to line them up across the MIDDLE of the cell.
MIDDLE = METAPHASE
What happens during Anaphase? - ANSWERThe spindle fibers SPLIT APART the
sister chromatids and move them to opposite ends of the cell, equally dividing the
genetic material.
APART = ANAPHASE
What happens during Telophase? - ANSWERA nucleolus forms in each side.
A new nuclear membrane forms around each new set of chromosomes, each with the
same number of chromosomes as the original cell.
Cytokinesis finishes the process by splitting the cell in 2.
The division cycle begins again with Interphase
What happens during cytokinesis? - ANSWERThe cytoplasm divides, distributing the
organelles into each of the two new cells.
What happens during cytokinesis of animal cells? - ANSWERCytokinesis finishes the
division process. The cell membrane squeezes together around the middle of the cell
until the cell is pinched in two, splitting the cell in two and dividing the cytoplasm,
organelles, and other material contained within the cell.
What happens during cytokinesis of plant cells? - ANSWERA cell plate forms across the
middle of the cell and gradually develops into new cell membranes, and new cell walls
form around the cell membranes.
Because of the rigid cell wall, the cell membrane cannot be pinched inward like
cytokinesis happens in animal cells.
What is meiosis? - ANSWEROnly for sexual reproduction.
Stages of gamete cell reproduction.
COMPLETELY SOLVED!!!
What is the cell cycle? - ANSWERThe regular sequence of growth and division that
cells undergo.
What are daughter cells? - ANSWERThe cells that result when a cell divides.
In what process does the cell make a copy of its DNA? - ANSWERReplication
What two-rod structures contain the cell's DNA? - ANSWERChromosomes
What is each rod called? - ANSWERChromatid
What is chromatin? - ANSWERStringy substance that consist of DNA tightly coiled
around proteins before it forms into chromosomes.
What is a chromatid? - ANSWEROne of two identical "sister" parts of copied
chromosomes.
What is a centromere? - ANSWERThe structure that holds the two chromatids together.
What is a centriole? - ANSWERCentrioles have spindle fibers attached to them.
Closer image of a centriole. - ANSWER
What is Mitosis? - ANSWERAsexual reproduction (cell division) of a body cell where
one copy of DNA is distributed into each of the two daughter cells.
Daughter cells are identical to the parent cell.
Purpose: To repair or replace body cells.
Mitosis only occurs in eukaryotic cells.
One continuous process. After Telophase, the division cycle starts again with
Interphase.
What are the stages of Mitosis? - ANSWERInterphase
Prophase
Metaphase
Anaphase
Telophase
, What happens during Interphase? - ANSWERThe cell grows, replicates its DNA, and
prepares to begin mitosis.
What happens during Prophase? - ANSWERChromatin forms into chromosomes.
Centrioles move to opposite sides and send out
spindle fibers.
Nuclear membrane (envelope) breaks down.
What happens during Metaphase? - ANSWEREach spindle fiber attaches to a
chromatid pair at its centromere to line them up across the MIDDLE of the cell.
MIDDLE = METAPHASE
What happens during Anaphase? - ANSWERThe spindle fibers SPLIT APART the
sister chromatids and move them to opposite ends of the cell, equally dividing the
genetic material.
APART = ANAPHASE
What happens during Telophase? - ANSWERA nucleolus forms in each side.
A new nuclear membrane forms around each new set of chromosomes, each with the
same number of chromosomes as the original cell.
Cytokinesis finishes the process by splitting the cell in 2.
The division cycle begins again with Interphase
What happens during cytokinesis? - ANSWERThe cytoplasm divides, distributing the
organelles into each of the two new cells.
What happens during cytokinesis of animal cells? - ANSWERCytokinesis finishes the
division process. The cell membrane squeezes together around the middle of the cell
until the cell is pinched in two, splitting the cell in two and dividing the cytoplasm,
organelles, and other material contained within the cell.
What happens during cytokinesis of plant cells? - ANSWERA cell plate forms across the
middle of the cell and gradually develops into new cell membranes, and new cell walls
form around the cell membranes.
Because of the rigid cell wall, the cell membrane cannot be pinched inward like
cytokinesis happens in animal cells.
What is meiosis? - ANSWEROnly for sexual reproduction.
Stages of gamete cell reproduction.
