SHORTCUT TO SUCCESS | TRUSTED, TESTED, AND
TRUE!
You might think of how parents look like their children. Their shared characterisitecs are
coded in the DNA passed down by the parent. This DNA is in all cells, which copies
itself as one cells divides into two. Do you think this process is the same for all cells? -
Answer: No, because eukaryotic cells would need more complex processes due to their
size and complexity
See if you can identify which steps should occur in binary fission below: - Answer: -
DNA is copied in place
- Cell wall and membrane pinch closed
- DNA migrates to either side of cell
- Two genetically identical cells are present
Binary fission is used by: - Answer: prokaryotes
And produces - Answer: Two genetically identical cells
Eukaryotes (plants, animals, and fungi) reproduce differently than prokaryotes on a
cellular level. Which of the following do you think contributes most to this different
process? - Answer: Eukaryotes generally have larger genomes
Normally, the cell is in a state called interphase, which has three stages - G1, S, and
G2, shown to the right. In interphase, the cell is performing its normal functions, but
toward the end some changes begin happening. What do you see happening in the
images to the right? - Answer: The genetic material is being copied
The first stage of mitosis is called prophase. The images to the right show a cell both
before and after prophase. What appears different? - Answer: The genetic material has
condensed
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Shown on the right is an enlarged version of the diagram of the cell after prophase, in
which X-shaped structures called chromosomes have condensed from chromatin. Do
you think chromosomes would always be shaped like an X? Why or why not? - Answer:
No - other organisms might have differently shaped chromosomes
Shown at right is a diagram of a cell in the second phase of mitosis, metaphase. What
has happened in metaphase? Select all that apply: - Answer: Chromosomes are lining
up in the middle of the cell
The chromosomes have connected to something on either end of the cell
The nucleus has dissolved
The third phase of mitosis is called anaphase. What do you see happening in
anaphase? Select all that apply. - Answer: he chromosomes are moving to either end of
the cell
The chromosomes have split in half
What is present on either end of the cell at the end of anaphase? - Answer: One
complete set of genetic information
(Note: The pinching of the cytoplasm is part of cytokinesis, not telophase. It is shown
here because the two processes may occur simultaneously.) - Answer: A new nucleus
has formed on either end of the cell
After mitosis, one final process remains, called cytokinesis. What happens in
cytokinesis? Select all that apply. - Answer: The cytoplasm has been sealed between
the two new cells
The cell has divided
Mitosis is used by: - Answer: Eukaryotes
2
APPHIA - Crafted with Care and Precision for Academic Excellence.