Solved by a verified expert:Mitosis

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MitosisWorksheet-Answer
the questionsabout the photos below:
Onion root
tipphotos at 600x and 1000x taken by
Stan Carpenter of Hands-On Labs, Inc.

1. What
phase is this cell undergoing?

2. What
happens afterthis phase?

1. The
two center side-by-side
cells are undergoingtwodifferent
phasesof mitosis.

a. What
are these phases?

b.
Whatdiagnosticfeaturescanhelp you
with your decision?

1. What
phase is this cell undergoing?

2. How
can you
tell?

1. This cell has clearly visible chromatids.

a.
What’sthenextphasethiscellwill
undergo?

b.
Wherewillthechromatidsgointhe coming
phase?

1. Thecellinthelowercenterisexhibiting
signs of what phase of mitosis?

2.
Whatphasedoesitappearthecellaboveis
undergoing?

1. Explainwhathappens
duringanaphase.

2.
When
thechromatidsseparate,whatis each called?

Questions

A. What
is the purpose of mitosis?

B. Why
is the cell cycle important
for organisms?

C. What
role does mitosis play in the growth
of an embryo?

D. What
is one main differencein
the mitoticprocesses between
plant and animal cells?

E. Ifthecellthathasundergonemitosisoriginallyhadthediploid
(2n)numberofchromosomes,
then what number of chromosomes will the nuclei in the two new
cells have?

F. Can mitosis ever be used for reproduction?

G. What parts of plants are most impacted
by mitosis?

H. Why might
mitosis be easier to study
in the tipof the root?

I. Where else in a plant might you
finda large amount of mitoticcell division occurring? J. How
might the mitoticindex be applied in agriculture?

K. Whatdidyoucomputetobethemitoticindexofthecombinedsixslides(assumethereare
54totalcells)?Incomparison
totheindexesreflectedinFigure8,fromapproximatelywhicharea
of a root was
the sample taken?