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25 terms

SCS BIO CHAPTER 9

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sister chromatid
one of a pair of identical chromosomes created before a cell divides
mitotic phase
stage of the cell cycle when a cell is actively dividing
metaphase
second stage of mitosis and of meiosis I and II when the spindle is fully formed and all of the chromosomes are held in place; chromosomes line up
meiosis
type of cell division that produces four cells, each with half as many chromosomes as the parent cell
centromere
region where two sister chromatids are joined tightly together
mitosis
process by which the nucleus and duplicated chromosomes of a cell divide and are evenly distributed, forming two daughter nuclei
anaphase
third phase of mitosis and of meiosis I and II, in which the sister chromatids separate and move toward the poles of the spindle
karyotype
A picture of all the chromosomes in a cell arranged in pairs
chromatin
combination of DNA and protein molecules, in the form of long, thin fibers, making up the genetic material in the nucleus of a eukaryotic cell
cell cycle
series of events that cells go through as they grow and divide
cytokinesis
division of the cytoplasm during cell division
telophase
last phase of mitosis, chromosome are in two new cells and nuclear membranes start to reform
cancer
common name for a class of diseases characterized by uncontrolled cell division
sex-linked gene
gene located on the X or Y chromosome
chromosome
threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
interphase
the period of the cell cycle during which the nucleus is not undergoing division, typically occurring between mitotic or meiotic divisions
prophase
the first stage of mitosis and meiosis in cell division; characterized by the condensation of the chromosomes and the dissolution of the nuclear envelope
cell plate
A double membrane across the midline of a dividing plant cell, between which the new cell wall forms during cytokinesis.
trait
a characteristic that an organism can pass on to its offspring through its genes., specific characteristic that varies from one individual to another
spindle
(biology) tiny fibers that are seen in cell division
telophase
the final stage of mitosis
Benign tumor
an abnormal mass of essentially normal cells
cancer
any malignant growth or tumor caused by abnormal and uncontrolled cell division
Metastasis
the spreading of a disease to another part of the body
Zach
The AWESOME black kid