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Science-Chapter 2
from a cell to an organism
17
Science
7th Grade
11/18/2015

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Term
Cell Cycle
Definition
life cycle of a cell that includes phases of growth and development and reproduction
Term
Interphase
Definition
the phase of a cell cycle in which a cell is preparing to reproduce        *longest phase of cell cycle
Term
centromere
Definition
a region near the middle of each chromatid that holds toghether the sister chromatids
Term
mitosis
Definition
a process in which the nucleus of the cell divides
Term
cytokinesis
Definition
the final stage of cell division when the cytoplasm of the cell divides
Term
cytokinesis
Definition
the final stage of cell division when the cytoplasm of the cell divides
Term
prophase
Definition
the first stage of cell division in which the DNA that makes up a replicated chromosones move and twist into tight coils
Term
metaphase
Definition
the second stage of mitosis in which the replicared chromosones move to the middle of the cell and the pairs of sister chromatids line up end to end across the center of the cell
Term
anaphase
Definition
the third stage of mitosis in which the sister chromatids of each replicated chromosones begin to separate
Term
telophase
Definition
the final phase of mitosis in which a new membrane forms around each set of chromosones, creating two identical nuclei
Term
daughter cell
Definition
two cells that form when the cytoplasm and its components divide
Term
daughter cell
Definition
two cells that form when the cytoplasm and its components divide
Term
cell plate
Definition
a disk that formed between the two new nuclei of a plant cell that is dividing
Term
homologous chromosones
Definition
a pair of similar chromosones
Term
sister chromatid
Definition
copy of a chromosone made during S-phase of cell cycle
Term
cell differentiation
Definition
a process in which cells become different types of cells
Term
cell differentiation
Definition
a process in which cells become different types of cells
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