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Bio chapter 20
bio
17
Biology
8th Grade
03/15/2011

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Term
mitosis
Definition
part of eukaryotic cell division during which the cell nucleus divides
Term
Cytoknesis
Definition
division of the cyctoplasm to form two seperate daughter cells
Term
Asexual Reproduction
Definition
process of reproduction involving a single parent
Term
DNA
Definition
the genetic instructions used in the development and functioning of all known living organisms
Term
Chromatin
Definition
substance found in eukaryotic chromosomes that consist of DNA tightly coiled around histones
Term
Centromere
Definition
region of a chromosome where the two sister chromatids attach
Term
Interphase
Definition
Period of cell cycle between cell divisions
Term
Prophase
Definition
first and longest phase of mitosis in which the genetic material from inside the nucleus condenses and chromosomes become visable
Term
Metaphase
Definition
phase of mitosis in which the chromosomes line up across the center of the cell
Term
Anaphase
Definition
phase of mitosis in which the chromosomes separate and move to oppisite ends of the cell
Term
Telophase
Definition
phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin
Term
Cell Plate
Definition
The beginning of the formation of a cell wall
Term
Binary Fission
Definition
type of asexual reproduction where an organism replicates its DNA and divides in half, producing two identical daughter cells
Term
Budding
Definition
In single-celled organisms, such as budding yeast, it differs from binary fission in that the two resulting cells are not of equal size.
Term
Spore Formation
Definition
capable of surviving unfavorable conditions
Term
Regeneration
Definition
growth anew of lost tissue or destroyed parts or organs
Term
Vegetative Propagation
Definition
process by which new plant "individuals" arise or are obtained without production of seeds or spores
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