10.2 Flashcards
Why do cells copy their genetics?
to reproduce and to avoid information overload
Genetic information bundled into packages of DNA
Chromosomes
Molecules found in the cytoplasm along with most of the other contents of a cell (SINGLE CELL)
Prokaryote
How many chromosomes do prokaryotes have?
One, circular DNA Chromosome
Many chromosomes, More genetics, and form close association with histones
Eukaryotes
complex of chromosomes and protein
Chromatin
DNA tightly coiled around histones forming what?
Nucleosomes
What do Nucleosomes form for cell division?
Fibers
series of events cells go through as they grow and divide
Cell cycle
When cells divide, what do they make?
two daughter cells
Birary Fission is what?
Asexual reproduction prokaryotes go through
time before division (growth)
Interphase
4 steps of Eukaryotes go through to divide
Growth, Replicate DNA, Prep for mitosis, and then Division
First stage of cell division in Eukaryotes; Division of the Nucleus
Mitosis
Second Stage in EuKaroytic cell division; division of the cytoplasm
Cytokinesis
Mitosis’ 4 phases
Prophase, metaphase, anaphase, and telophase
Genetic material inside the nucleus condenses and the duplicated chromosomes become visible. Out side the cell spindle forms
Prophase
where new strands of DNA molecules can be seen
Centromere
Each DNA strand in the duplicate chromosome
Chromatid
Chromosomes line across the center of the cell. Spindle fibers connect
Metaphase
Sister chromatid separate to opposite corners
Anaphase
Condensed chromosomes move away into tangle of chromomatin
Telophase
Completes cell division
Cytokinesis
