Cell Growth and Division Vocab
cell division-The process by which a cell divides to form two daughter cells.
chromatid-one of two identical chromosomal strands into which a chromosome splits longitudinally preparatory to cell division.
centromere-a specialized structure on the chromosome, appearing during cell division as the constricted central region where the two chromatids are held together and form an X shape.
interphase-the period of the cell cycle during which the nucleus is not undergoing division.Also called interkinesis.
cell cycle-The series of events involving the growth, replication, and division of a eukaryotic cell.
mitosis-Celldivision in which the nucleus divides into nuclei containing the same number of chromosomes.
prophase-the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes.
centriole-One of two cylindrical cellular structures that are composed of nine triplet microtubules and form the asters during mitosis.
spindle-shaped structure, composed of microtubules, that forms near the cell nucleus during mitosis or meiosis and, as it divides, draws the chromosomes to opposite poles of the cell.
metaphase-the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle.
anaphase-the stage in mitosis or meiosis following metaphase in which the daughter chromosomes move away from each other to opposite ends of the cell.
telophase-The final stage of mitosis or meiosis during which the chromosomes of daughter cells are grouped in new nuclei.
cytokinesis-The division of the cytoplasm of a cell following the division of the nucleus.
cyclin-A class of proteins that fluctuate in concentration at specific points during the cell cycle and that regulate the cycle by binding to a kinase.
cancer-any malignant growth or tumor caused by abnormal and uncontrolled cell division.
The End!
2 comments:
The text in your first figure is incorrect. It should say that chromatids replicate to form chromosomes.
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