Mitosis Flashcards
What is mitosis?
Type of cell division.
What is a gene?
Sequence of DNA, smaller than a chromosome.
What is a chromosome?
Tightly coiled strips of DNA; contained in nucleus.
What is the cell cycle?
Time frame of how quickly cells divide.
Why might mitosis occur?
For cell growth, tissue repair, replace damaged cells and asexual reproduction.
1st stage of mitosis
DNA replicated, and the cell grows bigger.
2nd stage
The nucleus disappears and chromosomes line up at center of cell.
3rd stage
Cell fibers (spindles fibers) pull each arm of the chromosome apart onto left and right part of cell.
4th stage
A new nucleus forms around each set of chromosomes.
5th stage
Cytoplasm pinches around the nucleus and splits into two creating an identical pair of daughter cells