BIOS 251 Exam 2- Chamberlain University with
verified answers
1. Mitosis part of eukaryotic cell division during which the cell nucleus divides
characteristics:
1. development of an individual, composed of some 50
trillion cells, from a one-celled fertilized egg
2. growth of all tissues and organs after birth
3. replacement of cells that die
4. repair of damaged tissues.
2. Prophase Chromosomes become visable and releases into the cytosol, nuclear
envelop
dissolves, spindle fibers form, centrioles lie at each pole of cell, and
spindle fibers then tug the chromosomes back and forth until they line
up along the midline of the cell.
3. metaphase the chromosomes line up across the center of the cell
4. anaphase Phase of mitosis in which the chromosomes separate and move to
opposite ends of the cell
sister chromatids are generally identical
1/
19
,BIOS 251 Exam 2- Chamberlain University with
verified answers
5. Telophase
2/
19
, BIOS 251 Exam 2- Chamberlain
University
daughter chromosomes cluster on each side of the cell, rough ER produces
a new nuclear envelope around each cluster, and the chromosomes
begin to uncoil and return to the thinly dispersed chromatin form,
mitotic spindle breaks up and vanishes.
6. Cytokinesis division of the cytoplasm to form two separate daughter cells
7. Interphase The time between two successive M phases.
8. G1 phase Growth phase. Longest phase of cell cycle. produces extra organelles.
9. S phase The synthesis phase of the cell cycle; the portion of interphase during
which DNA is replicated
10. G2 Phase Prepare for mitosis. Make microtubules. further cell growth and
organization of cellular contents
11. Meiosis a type of cell division that results in four daughter cells each with half the
number of chromosomes of the parent cell, as in the production of
gametes.
12. Differences 1. Meiosis has two rounds of genetic separation (mitosis twice)
be- tween and cellular division while mitosis only has one of each.
mitosis and 2. In meiosis, homologous chromosomes separate leading to
meiosis daughter cells that are not genetically identical. In mitosis the daughter
cells are identical to the parent as well as to each other.
3. Meiosis produces gamete cells and mitosis produces diploid
3/
19
verified answers
1. Mitosis part of eukaryotic cell division during which the cell nucleus divides
characteristics:
1. development of an individual, composed of some 50
trillion cells, from a one-celled fertilized egg
2. growth of all tissues and organs after birth
3. replacement of cells that die
4. repair of damaged tissues.
2. Prophase Chromosomes become visable and releases into the cytosol, nuclear
envelop
dissolves, spindle fibers form, centrioles lie at each pole of cell, and
spindle fibers then tug the chromosomes back and forth until they line
up along the midline of the cell.
3. metaphase the chromosomes line up across the center of the cell
4. anaphase Phase of mitosis in which the chromosomes separate and move to
opposite ends of the cell
sister chromatids are generally identical
1/
19
,BIOS 251 Exam 2- Chamberlain University with
verified answers
5. Telophase
2/
19
, BIOS 251 Exam 2- Chamberlain
University
daughter chromosomes cluster on each side of the cell, rough ER produces
a new nuclear envelope around each cluster, and the chromosomes
begin to uncoil and return to the thinly dispersed chromatin form,
mitotic spindle breaks up and vanishes.
6. Cytokinesis division of the cytoplasm to form two separate daughter cells
7. Interphase The time between two successive M phases.
8. G1 phase Growth phase. Longest phase of cell cycle. produces extra organelles.
9. S phase The synthesis phase of the cell cycle; the portion of interphase during
which DNA is replicated
10. G2 Phase Prepare for mitosis. Make microtubules. further cell growth and
organization of cellular contents
11. Meiosis a type of cell division that results in four daughter cells each with half the
number of chromosomes of the parent cell, as in the production of
gametes.
12. Differences 1. Meiosis has two rounds of genetic separation (mitosis twice)
be- tween and cellular division while mitosis only has one of each.
mitosis and 2. In meiosis, homologous chromosomes separate leading to
meiosis daughter cells that are not genetically identical. In mitosis the daughter
cells are identical to the parent as well as to each other.
3. Meiosis produces gamete cells and mitosis produces diploid
3/
19
