Name: ____________________ Date:_________________ Block: ____________
Use the video Mitosis: Splitting Up is Complicated - Crash Course Biology #12 to
help you fill in the following questions.
Your body’s cells have ______ chromosomes, which are grouped into _____ pairs.
Interphase:
1.
2.
Long strands of DNA are called _________________
DNA _______________ itself in interphase giving itself ______ copies.
Prophase:
1.
2.
3.
4.
Chromatin ____________ and produce thick strands of DNA called
___________.
The left and right sides of chromosomes are called ____________ and are
connected by a ________________.
The _________________ disintegrates and the ___________ head to the
opposite ends of the cell.
_______________ leave strands of _____________________________.
Metaphase:
1.
2.
Metaphase is the _______________ phase of mitosis
Chromosomes attach to _______________________ at their
_____________ and line up in the ___________ of the cell.
Bio-lography:
1.
2.
3.
Mitosis was first observed by _____________ ______________ in
_________ by studying the tissue of salamander ________ and _______.
________________ __________________ helped understand mitosis by
figuring out how _______________ _________________ helps snap the
chromosomes in line. That protein is called _______________.
The discovery of how dynein works was published on ______________.
Anaphase:
1.
2.
Motor proteins attached to centrosomes pull _______________ so they
split into __________.
It then drags them back to either end of the ___________.
Telophase:
1.
2.
3.
The new cells ________________ are reconstructed, including the nuclear
_______________.
Chromosomes relax, or unravel, back into _________________.
The division, called _______________ begins to form.
Cytokinesis:
1.
2.
3.
4.
Cytokinesis means “__________ ______________”
The ______ new cells move apart
The cell began with 46 chromosomes and now each new cell has _____
chromosomes.
These new cells are called ________________ ___________________.