Chapter 12 - Section 1 Flashcards
What does most cell division result in?
Genetically identical daughter cells
Genome
All the DNA in a cell
DNA molecules in a cell are packaged into _______
Chromosomes
Chromatin
A complex of DNA and protein that condenses during cell division
Somatic cells
Two sets of chromosomes
Gametes
Reproductive cells (germ cells)
How is DNA prepared for cell division?
DNA is replicated and the chromosomes condense
Each duplicated chromosome has two ______
Sister chromatids
Centromere
The narrow “waist” of the duplicated chromosome, where the two chromatids are most closely attached.
Where do the two sister chromatids move after separation
They move into two nuclei
Mitosis
The division of the genetic material in the nucleus
Cytokinesis
The division of the cytoplasm
Meiosis
A variation of cell division that produces gametes