Shared Flashcard Set

Details

J. Brunk
Mitosis
10
Science
7th Grade
01/28/2010

Additional Science Flashcards

 


 

Cards

Term
Cell Division
Definition
the formation of two daughter cells from a single parent cell
Term
Centriole
Definition
a cylindrical orgenelle in animal cells that is involved in cell division.

centrioles form spindle fibers which seperate chromosomes durin cell dividion
Term
Centromere
Definition
the part of a chromosome where the chromatids are attached

during mitosis spindle fibers attach to the chromosomes at the centromere
Term
Chromatid
Definition
one of two identical halves of a replicated chromosome
Term
Chromatin
Definition
DNA strands in the nucleus during interphase

chromatin stains dark, making it relativeley easy to see (the greek root chroma means color)
Term
Chromosome
Definition
a structure formed from condensed chromatin

chromosomes consist of two identical chromatids attached at the centromere, giving them a charecterristic "X" shape

Chromosomes occur in pairs. human cells have 23 pairs of chromosomes, or 46 total chromosomes
Term
Cytokinesis
Definition
the division of the cytoplasm of the cell to form two daughter cells
Term
DNA
Definition
a molecule that carries genetic information

DNA stands for deoxyribonucleic acid
Term
Interphase
Definition
the period in the cell cycle during which the cell grows, matures, and duplicates genetic information
Term
Mitosis
Definition
the equal division of the chromosomes into two genetically identical daughternuclie. mitosis consists of four stages

During prophase, chromosomes form from condensed chromatin

During metaphase the chromosomes line up along the center axis of the cell

During anaphase,the chromosomes split up and the chromatids are pulled to opposite ends of the cell

During telaphase, a new nuclear membrane forms around each set of chromatids.
Supporting users have an ad free experience!