Exercise 6: Mitosis Flashcards
It refers to the type of cell division that produces two genetically identical cells.
mitosis
TRUE or FALSE:
In multicellular eukaryotes, mitosis enables development, growth, and repair.
True
TRUE or FALSE:
The number of chromosomes each daughter cell receives in mitosis is similar to that of the parent.
True
TRUE or FALSE:
Cell division occurs only in certain parts of organisms.
True
Which plant cells are active in cell division?
cells in the tips of shoots and roots
TRUE or FALSE:
Cell division in animals is best observed during embryonic development.
True
It refers to the non-dividing phase of the cell cycle.
interphase
Give the 3 parts of interphase.
- G1-phase
- S-phase
- G2-phase
TRUE or FALSE:
The nuclear genetic material doubles during the S-phase but the number of chromosomes remains the same.
True
It refers to the dividing phase of the cell cycle.
M-phase
Which processes are under the M-phase?
mitosis and cytokinesis
It refers to the nuclear division in which equal number of monad chromosomes are distributed to the daughter nuclei.
mitosis
It refers to the process of partitioning the cytoplasm to form two daughter cells.
cytokinesis
Which stage of cell division is characterized by an apparent nucleus?
interphase
Which stage of cell division is characterized by uncoiled and indistinguishable chromosomes?
interphase
Which stage of mitosis is characterized by disappearing nucleoli and nuclear membrane?
prophase
Which stage of mitosis is characterized by condensing chromatin fibers of chromosomes?
prophase
Which stage of mitosis is characterized by the attachment of chromosomes into spindle fibers and alignment at the middle of the cell?
metaphase
Which stage of mitosis is characterized by the complete disintegration of the nuclear envelope?
metaphase
Which stage of mitosis is characterized by completely condensed dyad chromosomes?
metaphase
Which stage of mitosis is characterized by the separation of sister chromatids towards the opposite poles of the cell.
anaphase
Which fibers facilitate the movement of chromosomes in mitosis?
spindle fibers
Which stage of mitosis is characterized by the uncoiling of chromosomes into chromatic and the reformation of the nuclear envelope.
telophase
TRUE or FALSE:
By the time the nuclei have formed in telophase, cytokinesis has already started.
True
In plant cell division, it refers to the structure which later becomes the middle lamella.
cell plate
It refers to the constriction formed in the plasma membrane during cytokinesis.
cleavage furrow
Give the formula for mitotic index.
mitotic index = (number of mitotic cells) / (number of cells examined)
