Mitosis
Meiosis
Potpourri
100 100 100
200 200 200
300 300 300
FINAL JEOPARDY!
Mitosis for 100
Name the five phases of the cell cycle in
order (excluding cytokinesis).
Interphase, Prophase, Metaphase,
Anaphase, Telophase
Mitosis for 200
During which phase does the DNA uncoil?
Telophase
Mitosis for 300
How many versions of each gene are
present during prophase?
Four. There was already one from each
parent before DNA replication.
Meiosis for 100
Why does meiosis occur?
Meiosis occurs only to
produce gametes (sperm
cells and egg cells) in
animals.
Meiosis for 200
What cells are byproducts of oogenesis, and what
happens to them?
Polar bodies are reabsorbed by the ovaries.
Meiosis for 300
List the number of autosomes and the number of
sex chromosomes in a human ovum.
22 autosomes and 1 sex chromosome because the
ovum is just a haploid gamete.
Potpourri for 100
Daily Double!
What’s your wager?
List three differences between mitosis and meiosis.
Mitosis
Meiosis
One
NUMBER OF DIVISIONS
Two
Dyads LINING UP IN METAPHASE Tetrads, then dyads
Two
# OF RESULTING CELLS
Four
Diploid
# OF SETS OF DNA
Haploid
Growth,
PURPOSE
Gamete Formation
Replacement,
Reproduction
Potpourri for 200
How many ____ in a nerve cell?
A)
Chromosomes
46
B)
Genes
about 30,000
C)
Base pairs of DNA
about 6 billion
Potpourri for 300
At what specific point in cell division is DNA no
longer able to function?
This occurs in prophase when the DNA supercoils.
Compact DNA is as unreadable as a closed book.
No calculators allowed!
How many cells would one ideally expect after four hours
and 15 minutes if seven Bacillus megaterium carried out
binary fission every 30 minutes?
Binary fission would be able to complete only 8 times in
the 255-minute timespan. We start with seven cells, so we
have the following expression:
7*
8
2
= 7 * 256 = 1792