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Chapter 12

Horizontales
Phase of the cell cycle that includes G1, S, and G2
Uncoiled DNA
The human ________ consists of 46 chromosomes
Chromosomes are long segments of DNA wrapped around ________
_______ in the cell cycle ensures that the cell is ready to proceed to the next phase of the cycle
There may be hundreds, or even thousands, of genes on a single __________
Cell division in ________ occurs by binary fision
Phase in mitosis when the replicated chromosomes are lined up in the middle of the cell
Occurs when cell cycle is not regulated
Movement of replicated chromosomes to opposite poles of the cell
Verticales
Process by which one cell divides to form two genetically identical daughter cells
The human female has 23 pairs of ________ chromosomes
A protein that acts as an activator for the enzyme that signals the cell that it's ok to proceed from one phase to the next in the cell cycle
An enzyme that uses phosphorylation to regulate the cell cycle
Phase in mitosis when the nuclear envelope reforms
Phase in mitosis when the nuclear envelope disintegrates
A replicated chromosome
Attachment site between two sister chromatids
The process by which the cytoplasm divides, creating two new daughter cells
During cytokinesis the ________ divides
A sequence of DNA (part of a chromosome) that contains the instructions for making a protein