Flashcards in Cell Division Deck (35)
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Name the four stages of cell division
G1,S,G2,M
1
Division of the nucleus
Karyokinesis
2
Division of the cytoplasm
Cytokinesis
3
Period between cell divisions when a cell metabolizes and prepares to divide
Interphase
4
What is part of interphase?
G1,S, G2
5
Connected by the centromere
Chromatids
6
Connects the chromatids
Centromere
7
Cell creates organelles and begins metabolism
G1
8
DNA synthesis in which the chromosomes of the cell are copied
S
9
Process that ensures that the normal number of chromosomes is restored after cell division
Synthesis (S phase)
10
Another name for mitosis
Karykinesis
11
body cell divides once to produce two daughter cells that are genetically identical to the parent cell
Mitosis
12
a sex cell divides twice to produce four genetically different daughter cells with one-half the number of chromosomes of a body cell.
Meiosis
13
How many chromosomes do body cells have?
46
14
How many chromosomes do sex cells have?
23
15
Made up of 2 chromatids connected by a centromere
Chromosome
16
The spot on the centromere where the spindle fiber attaches
Kinetechore
17
DNA is copied
Synthesis
18
Chromatin scrunches into chromosomes; centromere and spindle fibers appear to pull the chromosomes
Prophase
19
What disappears during prophase?
Nucleolus and nuclear membrane
20
Chromosomes line up in the middle of the cell
Metaphase
21
the chromatid arms separate and move to opposite ends of the cell
Anaphase
22
same size and the same shape and carry genes for the same traits but are NOT identical.
Homologous
23
The region near the nucleus where the centrioles are found that helps organize the spindle fibers during cell division
Centrosome
24
log-like structures that appear near the nucleus during cell division in an animal cell and move to opposite poles to pull the chromosomes apart.
Centrioles
25
Made of microtubules and connect each chromosome to the centrioles
Spindle fiber
26
The family of proteins that regulate the cell cycle in eukaryotic cells
Cyclins
27
When DNA and its attached proteins is spread out in the nucleus of non-dividing cells
Chromatin
28
When chromatin is scrunched up in dividing cells
Chromosomes
29
the process that a cell undergoes as it becomes specialized to perform very specific functions in the body.
Differentiation
30
Cell death
Apoptosis
31
Cell grows in preparation for cell division
G2
32
Cells are alive and metabolically active but do not divide; cannot be replaced when damaged
G0
33
Division of the cytoplasm
Cytokinesis
34
