Cell division Flashcards
Cell division is…
a process by which a single cell produces two daughter cells
Cell divison occurs for…
- Growth
- Cell replacement
- Healing
- Reproduction
Binary fission
an asexual process where prokaryotes separate the parent cell into two daughter cells. It is a simpler and faster process than mitosis
Prokaryotic cells divide by…
binary fisson
Eukaryotic cells divide by..,
mitotic cell division
The cell cycle consists of two different phases:
- M phase
- Interphase
M phase
Mitosis
- The separation of the chromosomes into two nuclei
Cytokinesis
- The actual splitting of the two cells
Interphase
S phase: DNA replication (twice as much DNA is produced)
G1 phase: Time preparation for the S-phase and regulatory proteins are created
G2 phase: Time preparation for the M phase and the cell size and amount of protein increases
G0: when the cell is not in a state of divison
Cell division in a eukaryotic cell
- genome is larger and linear
- DNA is found in the nucleus
- reproduced by mitotic cell divison
Cell division in a prokaryotic cell
- Genome is small and circular
- DNA is found in the cytoplasm
-reproduced by binary fission
Observations of embryos confirmed that plants and animals
- start as single celled organisms
- meiosis produces reproductive called gametes
- mitosis produces samatic cells