Meiosis
Sexual vs. Asexual
Reproduction
Haploid vs.
Diploid
100
100
100
100
200
200
200
200
300
300
300
300
400
400
400
400
500
500
500
500
Misc.
Meiosis I: Prophase I, Metaphase I, Anaphase I,
Telophase and Cytokinesis I
Meiosis II: Prophase II, Metaphase II, Anaphase II,
Telophase and Cytokinesis II
What are all the stages
of Meiosis?
Row 1, Col 1
Reproduction in which gametes from a male and female
create genetically unique offspring.
Define: Sexual Reproduction
Row 1, Column2
46 chromosomes & Diploid
(23 from mom or 23 from dad)
How many chromosomes
do you have?
Is it haploid
or Diploid?
Row 1, Column 3
A haploid reproductive cell that unites with another haploid
reproductive cell. For example: sperm and egg cells.
Define: gamete
Row 1, Column 4
Haploid unique sperm or egg cells.
One cell divides twice into 4 daughter cells.
What are the results of Meiosis?
Row 2, Column 1
Reproduction that does not involve the union of gametes
and in which a single parent produces offspring that are
genetically identical to the parent (clones).
Define:
Asexual Reproduction
Row 2, Column 2
Gametes (sperm or egg cells) are:
haploid (23 chromosomes)
Are gametes haploid
or diploid?
Row 2, Column 3
Mitosis produces two diploid cells
Meiosis produces four haploid cells (gametes).
Contrast
Mitosis and Meiosis
Row 2, Column 4
Homologous chromosomes are the same size,
shape or structure, and genes.
Define:
homologous
chromosome
Row 3, Column 1
Sexual reproduction: Humans through meiosis make
gametes (sperm or egg cells) with unique genetic
information that combine during fertilization.
Explain how you
know if humans
reproduce sexually
or asexually
Row 3, Column 2
At the end of Meiosis II the cells are haploid (23
chromosomes)
During what stage
do cells become
haploid during meiosis?
Row 3, Column 3
The exchange of genetic material between homologous
chromosomes during meiosis (Prophase I)
What is crossing over
and when does it occur?
Row 3, Column 4
Metaphase I: Homologous chromosomes line up on the
Metaphase plate
Metaphase II: Single Chromosome lines up on the
metaphase plate
What is the difference
between Metaphase I
and Metaphase II?
Row 4, Column 1
Asexual because both new starfish would be clones
(genetically identical).
If you cut a starfish
in half, both halves
grow into a starfish.
What kind of reproduction
would this be?
Sexual, Asexual or Both?
Row 4, Column 2
New diploid cells are made through mitosis all the time for males
and females for growth, repair and replacement.
New haploid cells are made all the time in males (sperm). For
females, eggs are made before puberty only.
How often are diploid cells
and haploid cells made
in males and females?
Row 4, Column 3
Anaphase I
When do homologous
chromosomes
get separated?
Row 4, Column 4
Anaphase I: Homologous chromosomes separate apart.
Anaphase II: Sister chromatids separate apart.
Compare and contrast
Anaphase I and
Anaphase II of Meiosis
Row 5, Column 1
Spermatogenesis: male gamete formation. Diploid cell divides
through meiosis to form 4 haploid cells.
Oogenesis: Formation of egg (or ova). Diploid cell divides via
meiosis into one egg cell and three nonfunctional polar bodies.
Compare and contrast
spermatogenesis
and oogenesis.
Row 5, Column 2
48 is diploid; it will have 24 chromosomes when it is
haploid after meiosis.
A chimpanzee has 48
chromosomes when it is
(Haploid or Diploid).
It has_____ (pick a #)
chromosomes after meiosis
when it is (Haploid or Diploid).
Row 5, Column 3
Interphase just like Mitosis
When does the DNA replicate
for Meiosis?
Row 5, Column 4