Genetics Lec.

2.  Mitosis is the process by which
a eukaryotic cell separates
the chromosomes in its cell nucleus into
two identical sets, in two separate nuclei.
 Mitosis produces two daughter cells that
are identical to the parent cell. (Diploid)

4.  Mitosis and cytokinesis together define
the mitotic (M) phase of the cell cycle—
the division of the mother cell into two
daughter cells, genetically identical to
each other and to their parent cell.

5.  Interphase
 Prophase
 Metaphase
 Telophase

6.  divided into three
phases: G1 (first gap), S
(synthesis), and G2 (second
gap).
 phase of the cell cycle in
which the cell spends the
majority of its time and
performs the majority of its
purposes including
preparation for cell division.

7.  Normally, the
genetic material in
the nucleus is in a
loosely bundled coil
called chromatin. At
the onset of
prophase, chromatin
fibers become tightly
coiled, condensing
into discrete
chromosomes.

8.  Metaphase comes
from
the Greek meta
meaning "after."
 Microtubules find
and attach to
kinetochores in
prometaphase.

9.  the proteins that bind
sister
chromatids together
are cleaved.
 Early anaphase is
usually defined as the
separation of the sister
chromatids, while late
anaphase is the
elongation of the
microtubules and the
chromosomes being
pulled farther apart.

10.  A new nuclear
membrane, using
fragments of the
parent cell's nuclear
membrane, forms
around each set of
separated daughter
chromosomes.
 The nucleoli reappear,
too. Both sets of
chromosomes, now
surrounded by new
nuclei, unfold back
into chromatin.

11.  a separate process that begins at the
same time as telophase.
 Division of the cytoplasm that produces
distinct daughter cells.
 Each daughter cell has a complete
copy of the genome of its parent cell.
The end of cytokinesis marks the end of
the M-phase.