Chpt 12,13 Flashcards
All of a cells genetic information is called it’s
Genome
The life of a cell from the time it first is formed from a diving parent cell until it’s own division into two cells is called the
Cell cycle
The genetic information is in it’s
DNA
DNA molecules are packaged into
Chromosomes
Eukaryotic chromosomes are made of what, which is a complex of DNA and the associated protein molecules.
Chromatid
What are the units that specify an organism’s inherited traits?
Genes
Each single chromosome contains one very long, linear DNA molecule that carries several hundred to a few thousand ____
Genes
Each duplicated chromosomes has two _____ ________, each containing an identical DNA molecule.
Sister chromatids
They are initially attached all along their lengths by adhesive protein complexes know as
Cohesions
In condensed form, the duplicated chromosome has a narrow “waist” at the _____ which is a specialized region where the 2 chromatids are most closely attached.
Centromere
What is the division of the nucleus
Mitosis
What is the division of the cytoplasm
Cytokinesis
The shortest part of the cell cycle
Mototic phase
When cell growth occurs and chromosomes are copied
Interphase
A subcellular region containing materials that function throughout the cell cycle to organize the cell’s microtubules
Centrosome
A radial array of short microtubules that extends from each centrosome
Aster
A structure of proteins associated with specific sections of chromosomal DNA at the centromere where the spindle microtubules attach
Kinetochore
The imaginary plane midway between the spindles of the 2 piles where the centromeres of all duplicated chromosomes line up
Metaphase plate
What is A shallow groove in the cell surface near the old metaphase plate in animal cells
Cleavage furrow
In the middle of the cell in plant cells, a cell ___ forms which enlarges to form a cell wall between 2 daughter cells
Plate
