Card Set Information
Mitosis Cell Cycle
Biology Cell Cycle
Prokaryote "Binary Fission"
Form of "Asexual Production"
2 daughter cells are identical to parent, (if parent is flawed-> both daughter cells are flawed)
Somatic Cells (Definition)
Body Cells (except sperm and egg) that are Eukaryotes.
Human Body has what # of chromosomes?
Carry genes for traits other than sex chromosomes
# of Chromosomes denoted by "N" Ploidy?
ex. (N=23) 2(n) = 2(23) =
"Sets" of Chromosomes
Haploid= 1 "1(n)"
Diploid= 2 "2(n)"
Triploid= 3 "(n)"
ex. Organism with 15 chromosomes gets 3 sets.... 3(15) = 45 (Triploid)
Cell Cycle: "Somatic Cell Production"
Starts with 1 cell and forms 2 daughter cells
Interphase (happens majority of time) has 3 phases:
: Cell grows (expands)
: Duplicate DNA
: Cell Preps for Mitosis
Then comes "Mitotic phase"
Mitotic Phase Diagram (Somatic Cell Production)
1st stage of Mitosis
: Formation of centrosomes and spindle fibers
: Original DNA attaches to copied DNA
2nd Stage of Mitosis
spindle fibers attach to chromosomes
3rd Stage in Mitosis
Chromosomes are lined up in the middle of the cell
4th Stage in Mitosis
Spindle fibers pull chromosomes to edges
5th Stage of Mitosis
: Centrosomes and spindle fibers disappear
Middle part is the Pinching "Cleavage Furrow"
Seperate cytoplasm formation of 2 daughter cells
Cell wall is the difference between plant and animal cell. Animal cell has cleavage furrow and plant cell has cell plate.
Purpose of Cell Cycle
Make new cells
Consequence of Cell Cycle
flaw in cell cycle
leads to tumor
: mass of abnormal cells
Process of Cancer
1) Starts out with tumor and glandalour tissue
2) Tumor cells invade neighboring tissue
: Cancer moves through circulatory system due to blood vessels attaching to tumor cells
Formation of Tumors (Types of Tumors)
Benign Tumor: Remains at site of origin and disrupts function of surrounding organ
Malignant Tumor: Spreads
Naming Cancers (Based on site of origin)
: External or internal lining (Skin/organs)
: Tissue that supports body (Bones and muscle)
: Blood forming tissue
Gametic Cells (Features)
Contain Sperm and Egg
Form of "Sexual reproduction"
Haploid- 1 set of chromosomes
Starts with diploid cell (2n)
One diploid tunrs into 4 haploids
2 cell division can lead to "crossing over" where DNA switches between homologous chromosomes
Gametic Prophase 1
chromosomes 1, 12, 23 come together.
Alterations in Chromosome Number
: Display of chromosomes
a) Down Syndrome- individual has extra #21 chromosome and is sexually undeveloped (XXX) trisomy
a) Kline Felter Syndrome
: XXY (affects men) where men have smaller testes and enlarged breasts, sterol.
b) Turner Syndrome X "single X"(Affects women) -Physical features altered (short stature, flat face, extra skin on neck)
XXY- Males taller than most men
: no intelligence issue