Transcript Chromosomes and Cell Division - faculty lounge: non

Chapter 6: Chromosomes
and Cell Division
Clicker Questions
by Kristen Curran, University of Wisconsin-Whitewater
How might telomere length be
affected in a cloned animal like
“Dolly” the sheep?
1. Telomeres might be longer than
normal.
2. Telomeres might be shorter than
normal.
3. Telomeres might be of normal
length.
4. No telomeres would be present.
In which part of the cell cycle
does the cell spend most of its
time?
1.
2.
3.
4.
Interphase
Mitosis
G2
DNA synthesis
Review: If an incorrect base is
placed in the DNA during
replication, the mutation would
be called a:
1.
2.
3.
4.
deletion
insertion
substitution
chromosomal
breakage
What cellular process listed
below might involve mitosis?
1.
2.
3.
4.
Wound healing
Making insulin
Glucose transport
Muscle contraction
Classroom Catalyst
Mitosis Card Game
Which of the following processes
occurs first during mitosis?
1. Sister chromatids separate.
2. Sister chromatids line up at the
equator of the cell.
3. Chromosomes condense.
4. Cytokinesis
Put the events of mitosis listed
below in the correct order.
1.
2.
3.
4.
1.
2.
3.
4.
Sister chromatids separate.
Sister chromatids line up at the
equator of the cell.
Chromosomes condense.
Cytokinesis
1234
3214
3241
3124
Why do chemotherapy and radiation
affect cancer cells and normal cells?
1. Both treatments affect cells
that are in G1.
2. Both treatments affect cells
that are actively dividing.
3. Both treatments affect cells
that have a high metabolism.
4. Both treatments affect cells
that have stopped dividing.
A human sperm contains ___ chromosomes,
but when the sperm fuses with an egg, the
total number of chromosomes is ____.
1.
2.
3.
4.
46;
15;
23;
23;
92
30
46
23
Classroom Catalyst
Meiosis Card Game
What is the final outcome of
meiosis?
1. Four genetically identical cells
2. Four genetically non-identical
cells
3. Two genetically identical cells
4. Two genetically non-identical
cells
What event or events occur during meiosis
to make each resulting gamete genetically
non-identical?
1. Crossing over between homologous
chromosomes.
2. Alignment between pairs of homologous
chromosomes can differ during Metaphase I
(independent assortment).
3. Separation of sister chromatids during
Anaphase II.
4. Both 1 and 2 are correct.
5. All of the above.
If an organism lives in an environment
that is variable, it will most likely use
_________ reproduction via the
process of ___________.
1.
2.
3.
4.
Asexual; meiosis
Asexual; mitosis
Sexual; meiosis
Sexual; mitosis
The sex ratio (number of females vs. males)
of which of the following species might be
most affected by global warming?
1.
2.
3.
4.
Humans
Bees
Birds
Turtles
A non-disjunction is caused by a failure of
chromosomes to separate properly during
meiosis. Which non-disjunction listed below
will cause death of the zygote in the womb?
1. Three copies of chromosome 21
(small chromosome)
2. Two copies of the X chromosome
3. Two copies of the Y chromosome
4. Three copies of chromosome 1
(large chromosome).