Complete separation of the 2 new cells resulting from mitosis.
cytokinesis
A process that takes place in the nucleus of a dividing cell, involves a series of steps, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus.
mitosis
Period of time where a cell carries out cell processes and replicates DNA prior to cell division
interphase
Chromatin condenses into chromosomes
prophase
Chromosomes line up in the middle of the cell
metaphase
Sister chromatids separate
anaphase
After the chromosome separates, the cell seals off, Final Phase of Mitosis.
telophase
Each half of the chromosome
chromatid
A doubled rod of condensed chromatin; contains DNA that carries genetic information
chromosome
Area where the chromatids of a chromosome are attached
centromere
An ordered sequence of events in the life of a eukaryotic cell; process of growth and division.
cell cycle
interphase stage of cell cycle where cell grows and carries out metabolic processes
G1 phase
interphase stage prepares to divide by copying organelles
G2 phase
interphase stage of cell cycle where cell replicates DNA
S phase
stage of cell cycle where the nucleus divides
Mitosis
Majority of cell cycle is in this stage
Interphase
stop to the cell cycle to check for damage
Checkpoints
Cells skip checkpoints and divide uncontrollably
Cancer
first stage of mitosis, nuclear envelope disappears, chromosomes condense
Prophase
second stage of mitosis, centrioles move to opposite ends of cell, spindle fibers attach to chromosomes, chromosomes line up in middle
Metaphase
third stage of mitosis, spindle fibers shorten pulling chromosomes apart
Anaphase
fourth stage of mitosis, cells begin to form cleavage furrow (animal) or cell plate (plant) and divide
Telophase
final stage of the cell cycle, cells divide and move apart
Cytokinesis
DNA fist condenses and forms chromosomes
Prophase diagram
Chromosomes line up at the equator of the cell.
Metaphase diagram
Sister chromatids get pulled apart
Anaphase diagram
Two nuclei start to re-form, cleavage begins to form.
Telophase diagram
The division of the cytoplasm.
Cytokinesis diagram
Condensed DNA
Chromosome
central part of chromosome, joining the two sister chromatids
Centromere
single copy of DNA strands
Chromatid
organelle the sends out spindle fibers
Centriole
emerge from centrioles, attach to chromosomes to pull them apart during mitosis
Spindle fiber
divides cells that are too large, replaces damaged/dying cells, allows for growth
Purpose of mitosis
a pinching of the cell membrane that begins to form in telophase
Cleavage furrow
tobacco, radiation, UV exposure, etc.
Carcinogens
If a parent cell has 7 chromosomes, how many chromosomes will each daughter cell have?
7
If there are 7 duplicated chromosomes? How many chromatids are there?
14
identical copies of DNA joined together at a centromere to form a duplicated chromosome
sister chromatids
how many pairs of chromosomes in a human cell?
23