Flashcards in Mitosis Deck (27)
An ordered sequence of events in the life of a cell - from cell birth to cell death
A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, metaphase, anaphase, and telophase.
The first stage of mitosis, in which the
1-chromatin condenses into discrete chromosomes
2- the mitotic spindle begins to form
3- the nucleolus disappears but the nucleus remains intact.
The second stage of mitosis, in which
1- the nuclear envelope fragments
2- the spindle microtubules attach to the kinetichores of the chromosomes.
The third stage of mitosis, in which the
1- spindle is complete and
2- the chromosomes are all aligned at the metaphase plate.
The fourth stage of mitosis, in which the chromatids of each chromosome have separated and the daughter chromosomes are moving to the poles of the cell.
The fifth and final stage of mitosis, in which daughter nuclei are forming and cytokinesis has begun.
The division of the cytoplasm to form two separate daughter cells immediately after mitosis, meiosis I, or meiosis II.
A cellular structure carrying genetic material, found in the nucleus of eukaryotic cells.
The complex of DNA and proteins that makes up eukaryotic chromosomes.
A haploid reproductive cell, such as an egg or sperm. Gametes unite during sexual reproduction to produce a diploid zygote.
Two copies of a duplicated chromosome attached to each other at the centromere. These are eventually separated during mitosis or meiosis II
Center where 2 chromatids pinch together.
The phase of the cell cycle that includes mitosis and cytokinesis.
Mitotic (M) phase
The period in the cell cycle when the cell is not dividing. Chromosomes and organelles are duplicated, and cell size may increase. Often accounts for about 90% of the cell cycle.
Uncontrolled cell growth
A cell containing two sets of chromosomes (2n), one set inherited from each parent.
A cell containing only one set of chromosomes (n). (Hint- Sex cells)
Growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins.
G1 Phase (Gap1)
The phase of the cell cycle; the portion of interphase during which DNA is replicated.
S Phase - (Synthesis)
Growth phase, of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs.
G2 Phase- (Gap2)
A new cell wall forms during cytokinesis in the middle of a plant cell
A nondividing state occupied by cells that have left the cell cycle, sometimes reversibly.
Division of the cytoplasm
When Tumor is clustered together
When tumor cells have the ability to break away.