cell differentiation
once a cell differentiates, the process is __ reversed
rarely
Cells spend most of their time of cell cycle in
interphase
The purpose of mitosis is to make two identical __
nuclei
The cell cycle is driven by a __ __ system
chemical control
Stem cells are __ cells
undifferentiated
All most every cell in multicellular organisms have the same chromosomes and
DNA
Interphase is divided into _ parts
3
Mitosis results are two identical daughter _
cells
The cell cycle control system is regulated at certain _
checkpoints
plant stem cells can grow into _ type of plant organ, tissue, or cell
any
Cells can become almost _
any type of cell
G1 phase is when the cell _
grows
Mitosis is a form of _ reproduction
Asexual
_ regulate the process at certain checkpoints
proteins
unlimited
Types of cells smallest to biggest
cells, tissues, organs, organ systems
S phase, the _ replicate
chromosomes
Mitosis is in _ different phases
4
specific stimuli are required to _ the processes
start
Animal stem cells have two types _ and _
embryonic and adult
only specific parts of _ are activated
DNA
Cells
The 4 phases are _
pmat
Checkpoints are a critical point where _ and _ signals can regulate the cycle
stop and go
Stem cell research can help to identify __ and __
the causes of cancer and birth defects