Download Mitosis Nuclear division M Phase

Most of cell's life. It's not dividing
Interphase
S
Gap 1
DNA replicates (chromosomes double)
Makes protein, grows, makes more organelles
Gap 2
Makes proteins, prepares for cell division
M Phase
Mitosis
Nuclear division
Cytokinesis
Division of the cytoplasm
1
disappears
double
coil
reappears
move to middle
separate
relax
2
Early Prophase
Interphase
Late Prophase
Anaphase
Telophase
Metaphase
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Sex Chromosomes determine gender
Autosomes are the other 44 chromosomes One from your mom one from your dad, same size, shape and banding pattern, code for the same traits
Identical due to DNA replication in the S phase of interphase
Diploid contains both chromosomes of a homologous pair. Haploid cells only contain one chromosome of a homologous pair.
Egg is haploid. Zygote is diploid. A zygote is a fertilized egg.
Fertilization is when sperm and egg fuse. Meiosis is the process by which egg and sperm are made
Mitosis is cell division (to get more of the same cell). Meiosis is making egg or sperm
Sex Chromosomes because they determine gender. XX is a female. XY is a male
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Produces diploid daughter cells identical to the parent
Involves two cell divisions
Produces four daughter cells
Homologous pairs DO NOT separate. Meiosis 1 ­­ tetrads line up
Meiosis 2 ­­ double chromosomes line up
Crossing over occurs in Prophase 1
Needed for cell reproduction ­­ repair, growth, replacement of old cells
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Diploid Ovarian or Testicular cell (2n = 6)
Meiosis 1
Prophase 1
Anaphase 1
Metaphase 1
Telophase 1
Cytokinesis
Meiosis 2
Prophase 2
Metaphase 2
Anaphase 2
Telophase 2
Cytokinesis
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C
X
D
Z
B W
A
Y
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Odd number of chromosomes (haploid), so after meiosis 1. Chromatids still intact, so before anaphase 2.
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