8. DIRECTION:
There are 3 pictures reflected on the
screen you will predict what is the
meaning of these pictures reflected
9.
10.
11. DIRECTION:
Based on the words that you have predicted
you have their meta strips within the group.
Write down at least 3 words that you think of
that is associated from those words.
15. DIRECTIONS
1. Cut out the Cell Division Cards and organize
them in the correct order for both mitosis and
meiosis base on the description needed.
HINT: Both sets of cards (mitosis and meiosis)
start with 4 chromosomes in prophase
2. When you think you have them in the correct
order and phase, paste them on this page in
the appropriate areas below and on the back
of this paper. Use your lecture notes and
textbook for help.
17. process of nuclear division, splitting of the chromatin of
a nucleus," 1887, coined in German from Greek mitos
"warp thread," a word of uncertain etymology, +
Modern Latin -osis "act, process." The term was
introduced by German anatomist Walther Fleming
(1843-1905) in 1882.
18. PROPHASE
the chromatin has condensed into individual
chromosomes, the genetically-identical
chromosomes come together to form an “X”
shape, called sister chromatids.
19. MATAPHASE
Metaphase is the phase of mitosis that follows
prophase and prometaphase and precedes
anaphase. Metaphase begins once all the
kinetochore microtubules get attached to the sister
chromatids’ centromeres during prometaphase.
20. ANAPHASE
The third phase of mitosis, following metaphase and
preceding telophase, is anaphase. Since the sister
chromatids began attaching to centrosomes on
opposite ends of the cell in metaphase, they’re
prepped and ready to start separating and forming
genetically-identical daughter chromosomes during
anaphase.
21. TELOPHASE
Telophase is the last phase of mitosis. Telophase
is when the newly separated daughter
chromosomes get their own individual nuclear
membranes and identical sets of chromosomes.
22.
23. in biology, "division of a cell nucleus,"
1905, from Greek meiosis "a lessening,"
from meioun "to lessen," from meion
"less,"
24. PROPHASE1
During prophase I, differences from mitosis begin to
appear. As in mitosis, the chromosomes begin to
condense, but in meiosis I, they also pair up. Each
chromosome carefully aligns with its homologue
partner so that the two match up at corresponding
positions along their full length.
25. MATAPHASE1
during metaphase I, homologue pairs—not
individual chromosomes—line up at the
metaphase plate for separation.
26. ANAPHASE1
In anaphase I, the homologues are pulled apart
and move apart to opposite ends of the cell. The
sister chromatids of each chromosome, however,
remain attached to one another and don't come
apart.
27. TELOPHASE1
Finally, in telophase I, the chromosomes arrive at opposite
poles of the cell. In some organisms, the nuclear
membrane re-forms and the chromosomes decondense,
although in others, this step is skipped—since cells will
soon go through another round of division, meiosis II
28. PROPHASE2
During prophase II, chromosomes condense and the
nuclear envelope breaks down, if needed. The
centrosomes move apart, the spindle forms between
them, and the spindle microtubules begin to capture
chromosomes.
30. ANAPHASE2
In anaphase II, the sister chromatids separate
and are pulled towards opposite poles of the cell.
31. TELOPHASE2
In telophase II, nuclear membranes form around each
set of chromosomes, and the chromosomes
decondense. Cytokinesis splits the chromosome sets
into new cells, forming the final products of meiosis:
four haploid cells in which each chromosome has just
one chromatid. In humans, the products of meiosis
are sperm or egg cells.
34. ACTIVITY 1:
COMPARING MITOSIS AND MEIOSIS
Directions:
Determine whether the following
characteristics apply to Mitosis, Meiosis,
or both by putting a check in the
appropriate column.
38. DIRECTION:
Present any presentation of your liking
(illustration, memes, poems, acrostic etc.) that
expresses your understanding about the
importance of mitosis and meiosis, and their role
in the cell division cycle.
41. 1. MITOSIS IS A PROCESS THAT
A) MAKES EXACT COPIES OF THE ORIGINAL CELL
B) TRANSPORTS WASTE
C) ACTS AS A CELL WALL
42. 2. THE 5 PHASES OF MITOSIS ARE
A) INTERPHASE, ANALOGYPHASE, PACKPHASE,
METAPHASE, PROPANEPHASE
B) ANAPHASE, PLOWPHASE, MUSICPHASE,
INTERESTINGPHASE, PIZZAPHASE
C) INTERPHASE, PROPHASE, METAPHASE,
ANAPHASE, TELEPHASE
43. 3. MEIOSIS HELPS REPRODUCTION OF CELLS
BY:
A) DIVIDING THE SPINDLE FIBERS.
B) PRODUCING SEX CELLS WITH HALF THE
NUMBER OF CHROMOSOMES REQUIRED.
C) KEEPING THE CHROMOSOMES IN A LINE.
44. 4. THE NUMBER OF CHROMOSOMES IN
MOST HUMAN CELLS IS:
A) 23 B) 46 C) 108
45. 5. WHICH PHASE OF THE CELL CYCLE IS THE
LONGEST?
A) TELOPHASE – WHEN THE CYTOPLASM BEGINS
TO SEPARATE.
B) METAPHASE – WHEN THE CHROMATIDS LINE
UP IN THE CENTER OF THE CELL.
C) INTERPHASE – WHEN THE CHROMOSOMES
DUPLICATE.
.
47. DIRECTION:
Within your group compare mitosis and meiosis,
and their role in the cell division cycle by making
an illustration of mitosis and meiosis using
different indigenous materials.
