Cell Cycle
During which stage of the cell cycle does DNA replicate?
S phase
How many checkpoints are in regulation of the cell cycle?
3
DNA exists as chromatin during_____?
Interphase
DNA
Nucleic acid that transmits genetic information from parent to offspring and codes for the production of proteins
Checkpoints
A stage in the cell cycle that a cell receives stop/go signals
At what point in the cell cycle do the sister chromatids separate?
Anaphase
AT which checkpoint does the cell check to see if the spindle fibers are attached correctly?
M (spindle) checkpoint
A diploid organism with a total of 22 chromosomes has an # of _____?
11
Centromere
The region of the chromosome to which the spindle fiber is attached during the cell division
Mutation
Any change in a DNA molecule
Two daughter nuclei form in mitosis during___?
Telophase
Normal cells become cancerous through___?
DNA mutations
DNA condenses into chromatids during which phase?
Prophase
Histones
A type of protein found in chromosome
Tumor
A mass of tissue formed by abnormal cells
What are the two types of cells?
Stomatic and Gametes
Uncontrollable growth of cancer cells leads to a___?
Tumor
One half of a duplicated chromosome is a___?
Chromatid
Genonome
The complete set of DNA in an organism
Cyclins
Signals that regulate cell transitions through the various checkpoints
In what phase do microtubules attach to each kinetochore?
Metaphase
What causes cancer?
Uncontrolled cell growth or errors in genetic material
At the end of mitosis how many chromosomes is there in total___?
46
Kinetochore
A protein structure that forms on a chromatid during cell division
Apoptosis
programmed cell death