occurs in sex____ cells
Leads to reductional ________ division
MEIOSIS
MEIOSIS 1
No Interphase/ S phase in the beginnin
g
of second stage of Meiosis 2
Interphase
Chromosome doubles
MEIOSIS 2
Also Known as S phase
Prophase 1
Prophase 2
Chromosome Condenses
Sister chromatid condense
Tetrads are Formed
Nuclear membrane dissolves
Crossing over occurs
Metaphase 2
responsible for genetic diversity
Chromosome aligns at the equator of the cell
One sister chromatid is on each side of the metaphase plate
Metaphase 1
Chromosome lines up at the equator of the cell
Anaphase 2
Spindle fibers contract and separate 2 sister chromatids
Chromatids move to opposite poles
Anaphase 1
Spindle fibers contract
Homologous chromosome move to the opposite poles
sister chromatids stays together
Telophase 2
Nuclear membrane reforms & cells divide.
leads to the formation of 4 unique haploid cells
the sperm and egg has 23 chromosomes and are haploid
Telophase 1
Cell divides to form 2 haploid daughter cells.
Cytokinesis
u cell plasma membrane pinches off to form 2 da
The
ghter cells with separate plasma membrane
The zygote has 46 chr om osomes and ar e Diploid