DNA Structure
DNA wraps around proteins known as _________ to form nucleosomes.
Histones
The _________ made of _________ appears during cytokinesis in animals.
Concentration of ________ varies throughout the cell cycle.
Cyclins
Where a cell goes if it does not pass the G1 checkpoint.
G0
The name of the person who had immortal cells.
Henrietta Lacks
All of a cell's genetic information.
Genomes
G1 "first gap" Phase
__________ retains a constant concentration throughout the cell cycle.
Cyclin Dependent Kinases (CDKs)
What happens to a cell when it does not pass the G2 checkpoint.
Apoptosis
The term for when abnormal cells from a tumor spread to other parts of the body.
Metastasis
Two chromosomes that are the same length, have the same centromere position, and carry genes controlling the same characteristics.
Homologous Chromosomes
Formed by vesicles produced by the Golgi apparatus during cytokinesis.
Cell Plate
List the three external cell cycle regulators.
Definition of quiescent.
Nondividing
Somatic cells are ______ and gametic cells are ______.
Protein attached to the centromere that link each sister chromatid to the mitotic spindle.
Kinetochore
Phase the nuclear envelope fragments.
Name of the external regulator that stops the cell cycle in the G1 phase.
Contact Inhibition
The stage of mitosis that happens next when the cell passes the M checkpoint.
Anaphase
Name two specific somatic cells and two specific gametic cells.
Somatic: muscle, stomach, etc.
Gametic: egg, sperm
Order these from smallest to largest:
i. Chromatin
ii. Histones
iii. Nulceosomes
iv. Chromosome
1. Histones 2. Nucleosomes 3. Chromatin 4. Chromosome
Name the three phases of Interphase and the two phases of M phase in order.
Interphase: G1, S, G2
M Phase: Mitosis, Cytokinesis
Anchorage dependence relies on contact with other ______ or the ________ ___________ to divie.
Cells, Extracellular Matrix
What the M checkpoint checks for and what happens if a cell does not pass this checkpoint.
Checks for: Microtubule attachment to chromosomes at kinetochores
When a cell does not pass: Mitosis will pause so spindles can attach to chromosomes
Malignant tumors have lost ______ _________ and can leave the tumor site.
Anchorage Dependency