NAME:______________________________DATE:_______________PERIOD:_____
MEIOSIS: A type of cell division (similar to mitosis) that makes _________________.
RESULTS: Meiosis results in ________ daughter cells that have __________ as many
chromosomes as the original.

Haploid: Cells that have _____ the number of chromosomes as the
original cell.

Gametes: ___________ cells (egg and sperm).
PURPOSE OF MEIOSIS:
1.
MAKE GAMETES:
___________.
2.
DIVERSITY:


Meiosis is how your body makes _________and
Meiosis increases _____________ diversity.
Crossing over: During crossing over, ________________ chromosomes
exchange parts of their chromosomes (genetic information). This increases
the number of different combinations of DNA the offspring receive.
____________________ is vital to an organism’s survival as a species.
DIFFERENCES AND SIMILARITIES BETWEEN MITOSIS AND MEIOSIS
MITOSIS
1. Cell Division
2. Results in # of cells____ .
3. There is _________ division.
4. Produces ____________ cells
5. Daughter cells have ____________
number of chromosomes as the original cell.
MEIOSIS
1. Cell Division
2. Results in # ___of cells.
3. There are _________ division.
4. Produces _____________ cells.
5. Daughter cells have ____________
the number of chromosomes as the
original cell.
COMPARISION OF MITOSIS AND MEIOSIS 2N=4
MEIOSIS
MITOSIS
Pro I
Pro
Met I
Met
Ana I
Ana
Telo I
Telo
Cyto I
Cyto
Meiosis has a second division while MITOSIS STOPS after cytokinesis!
2ND DIVISION: MEIOSIS ONLY
Skips interphase
ProI
OOGENESIS: Making of _______________ or _________________

Females are born with all the ________ they will ever have.

Oogenesis makes ________ large oocyte/ootid and 3 smaller
___________________.

The oocyte (egg) gets ____________________ by the sperm and the
_____________________ do not.
Egg/Oocyte
Polar Bodies
SPERMATOGENESIS: Making of _________________

Males constantly make sperm throughout their life.

Spermatogenesis makes __________ sperm of equal size.