task 3: mitosis video
watch the mitosis video by the amoeba sisters and answer the following questions.
full url: https://www.youtube.com/watch?v=f - idpgefahi
tiny url: https://tinyurl.com/2p94d2jf
15. what type of cells does mitosis produce?
16. what cell activities occur during interphase?
17. what percent of time does a cell spend undergoing mitosis?
18. how many chromosomes do human body cells contain?
19. write the correct stage of mitosis next to each description of that phase.
a. chromosomes move to opposite sides of the cell.
b. chromosomes are condensing and the nucleus is still present.
c. new nuclei form around the chromosomes located at opposite side of the cell.
d. chromosomes line up in the middle of the cell.
20. what is cancer?
21. label each stage of cell division on the diagram below.

Question

task 3: mitosis video
watch the mitosis video by the amoeba sisters and answer the following questions.
full url: https://www.youtube.com/watch?v=f - idpgefahi
tiny url: https://tinyurl.com/2p94d2jf
15. what type of cells does mitosis produce?
16. what cell activities occur during interphase?
17. what percent of time does a cell spend undergoing mitosis?
18. how many chromosomes do human body cells contain?
19. write the correct stage of mitosis next to each description of that phase.
    a. chromosomes move to opposite sides of the cell.
    b. chromosomes are condensing and the nucleus is still present.
    c. new nuclei form around the chromosomes located at opposite side of the cell.
    d. chromosomes line up in the middle of the cell.
20. what is cancer?
21. label each stage of cell division on the diagram below.

Accepted Answer

### Question 15
# Brief Explanations:
Mitosis is a cell division process that results in two daughter cells, each having the same number and kind of chromosomes as the parent nucleus. These are somatic cells (body cells), as opposed to gametes (sex cells) produced by meiosis.
# Answer:
Mitosis produces somatic (body) cells.

### Question 16
# Brief Explanations:
Interphase is the phase of the cell cycle where the cell prepares for division. During this time, the cell grows (G₁ phase), replicates its DNA (S phase), and prepares for mitosis (G₂ phase). So the main activities are cell growth, DNA replication, and preparation for division.
# Answer:
During interphase, the cell grows (G₁), replicates its DNA (S), and prepares for mitosis (G₂).

### Question 17
# Brief Explanations:
A cell typically spends a small percentage of its time in mitosis. From cell cycle knowledge, a cell spends about 10 - 20% of its time in mitosis, with the majority (80 - 90%) in interphase. The Amoeba Sisters video likely states around 10% (or a similar small percentage) of the cell cycle is spent in mitosis.
# Answer:
A cell spends about 10% (or a small percentage, often around 10 - 20%) of its time undergoing mitosis.

### Question 18
# Brief Explanations:
Human body cells (somatic cells) are diploid, meaning they contain two sets of chromosomes. Each set has 23 chromosomes, so in total, human body cells contain 46 chromosomes (23 pairs).
# Answer:
Human body cells contain 46 chromosomes.

### Question 19
# Brief Explanations:
- a. When chromosomes move to opposite sides of the cell, this is anaphase. In anaphase, the sister chromatids are pulled apart to opposite poles.
- b. When chromosomes are condensing and the nucleus is still present, this is prophase. Prophase is the first stage of mitosis where chromatin condenses into chromosomes and the nuclear envelope is still intact initially.
- c. When new nuclei form around the chromosomes at opposite sides, this is telophase. Telophase involves the formation of new nuclear envelopes around the separated chromosomes.
- d. When chromosomes line up in the middle of the cell, this is metaphase. In metaphase, chromosomes align at the cell's equatorial plate (metaphase plate).
# Answer:
a. Anaphase
b. Prophase
c. Telophase
d. Metaphase

### Question 20
# Brief Explanations:
Cancer is a disease characterized by uncontrolled cell growth and division. Normal cells follow the cell cycle regulations, but cancer cells have mutations that allow them to divide uncontrollably, forming tumors (which can be benign or malignant) and potentially spreading to other parts of the body (metastasis).
# Answer:
Cancer is a disease where cells grow and divide uncontrollably, often forming tumors and potentially spreading (metastasizing) to other parts of the body.

### Question 21
# Brief Explanations:
The stages of cell division (mitosis and cytokinesis) in the diagram (from left to right):
1. First cell: Interphase (or G₁/S/G₂, showing a cell with intact nucleus and chromatin or replicated chromosomes).
2. Second cell: Prophase (chromosomes condensing, nucleus still present).
3. Third cell: Metaphase (chromosomes lined up in the middle).
4. Fourth cell: Anaphase (chromosomes moving to opposite sides).
5. Fifth cell: Telophase (new nuclei forming, cell starting to divide).
6. Last two cells: Cytokinesis (cell fully divided into two daughter cells).

So labeling each stage:
- First: Interphase
- Second: Prophase
- Third: Metaphase
- Fourth: Anaphase
- Fifth: Telophase
- Last (the two cells): Cytokinesis
# Answer:
From left to right:
1. Interphase
2. Prophase
3. Metaphase
4. Anaphase
5. Telophase
6. Cytokinesis (resulting in two daughter cells)

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