1.Mitosis is done by your body cells. What types of cells do
not undergo mitosis?
Sperm cells and egg cells do not undergo mitosis. They
undergo a different process of cell division called meiosis. The difference
between the two types of cell division is that mitosis result in a replication
of the parent cell or identical cells. Meiosis contributes to genetic variety,
meaning the resulting cells are different from the parent cell in some way.
2.Describe ways that
mitosis is important for your body.
Mitosis is important for growth. Mitosis creates new cells
as you grow. If you think about it, where do we get all the extra skin, longer
bones, longer hair—they result from the division of cells which create new
cells.
Another way it is important is in repair. When you get a cut
for example, mitosis helps by producing more cells to repair the gash that was
left. New cells fill in the part that was cut. Mitosis also helps with
replacing worn out cells.
3. This illustration is trying to demonstrate something that
mitosis is not. In mitosis, the cells that are created are identical.
The illustration shows that one type of cell produces a
different type, but it is not the case with mitosis. The resulting cells of
this type of cell division is identical or twins.
4.Mitosis is just one small part of the cell cycle! Describe
what would occur if cells were in mitosis more than they were in interphase.
Interphase makes up most of the cell cycle, it makes up
about 90% and mitosis occurs in 10% of the whole cycle. If cells were in mitosis more than they were
in interphase that would indicate an uncontrollable and rapid growth of cells
and you can get cancer.
5.When cells are dividing, it is important to understand
that they have to move chromosomes equally to both cells. Based on this
illustration, describe what a chromosome is made of.
Chromosomes are condensed units found in the nucleus. There
are 46 chromosomes each nucleus, or each cell. Chromosomes are made up of protein and DNA. DNA stands for
deoxyribonucleic acid and it carries genetic information.
6. In humans, there are 46
chromosomes. They are duplicated during interphase, which in turn
duplicates the DNA as well. Chromosomes are counted based on the number of
centromeres. The number of chromosomes in living organisms or species differ
from each other.
