Question

modeling cell division
haspi medical biology lab 05a
modeling mitosis (cell division)
cells that divide quickly and out of control can lead to the development of tumors and cancer. as a result, understanding how cells divide is crucial to developing treatments and cures for patients with cancer. in the following activity, you will create models to simulate the
part a materials:
cell division s
2 red pipe
procedure
your lab
observations
part a:
cells in the
under
collect
ces d
pha
il c
re
ar
prophase
metaphase
anaphase
telophase
cytokinesis
cell division, cancer, and chemotherapy, haspi medical biology lab 05
a. why do you think it is necessary for dna to wind up into an organized chromosome before it divides?
to ensure equal distribution of dna to daughter cells during division.
b. what is the relationship between chromatids and chromosomes?
a. why do you think the nuclear envelope disappears before the cell divides? explain your answer.
a. what is the purpose of the spindle and spindle fibers?
a. does each side of the cell have the same dna? explain your answer.
a. why does the nucleus reform?
b. why does the dna unwind back into chromatin

Explanation:

These questions relate to mitosis stages and cellular structures, requiring biological concepts explanations.

Answer:

What is the relationship between chromatids and chromosomes? Chromatids are two identical strands of a duplicated chromosome, connected by a centromere.
Why do you think the nuclear envelope disappears before the cell divides? To enable spindle fibers to reach and interact with chromosomes for separation.
What is the purpose of the spindle and spindle fibers? To attach to chromosomes and pull sister chromatids to opposite poles during division.
Does each side of the cell have the same DNA? Explain your answer. Yes; sister chromatids (identical DNA copies) separate to each side, ensuring genetic uniformity.
Why does the nucleus reform? To enclose and protect the separated DNA in each new daughter cell.
Why does the DNA unwind back into chromatin? To allow access for gene expression and normal cellular processes post-division.