Flashcards in Chapter 8- Cellular Reproduction; Cells from Cells Deck (31):
the production of offspring by female without involvement of a male. One form of asexual reproduction.
the creation of a new generation without participation of sperm and egg.
the two "daughter" cells that result are genetically identical to each other and to the original "parent" cell.
the structures that contain most of the cell's DNA.
Requires fertilization of an egg by a sperm.
egg and sperm-- involves a special type of cell division called meiosis, which occurs only in reproductive organs.
Combination of DNA and proteins that constitutes chromosomes; used to refer to form of chromosome in nondividing eukaryotic cell
Small basic protein associates with DNA and important in DNA packaging in eukaryotic cells
One of the two identical parts of a duplicated chromosome in a eukaryotic cell
Region of s chromosome where two sister chromatids are joined and where spindle microtubules attach during mitosis and meiosis
Period of the cell cycle when the cell is not actually dividing
Part of cell cycle that includes mitosis and cytokinesis producing two daughter cells
Division of the cytoplasm to form two separate daughter cells; usually occurs during telophase of mitosis; mitosis and cytokinesis make up the M (mitotic) phase of the cell cycle
Spindle-shaped structures formed form microtubules and associated proteins that is involved in the movement of chromosomes during mitosis and meiosis
Material in the cytoplasm of a cell that gives rise to microtubules;
an indentation at the equator of the cell.
Double membrane across the midline of a dividing plant cell between which the new cell wall forms during cytokinesis
Cell Cycle Control System
Specialized proteins within the cell that integrate information from the environment and from other body cells and send "stop " and "go-ahead" signals at certain key points during the cell cycle.
disease of the cell cycle by cells dividing excessively and may invade other tissues of the body.
an abnormally growing mass of body cells.
the lump of abnormal cells remaining at the original site
one that has the potential to spend into neighboring tissues and other parts of the body, forming new tumors.
the spread of cancer cells beyond their original site
typical body cell that has 46 chromosomes in humans.
a display of the metaphase chromosomes of a cell, arranged by size and centromere position.
the two chromosomes of such a matching pair carry genes controlling the same inherited characteristics.
determine a persons sex.
Females have two X chromosomes, the remaining chromosomes, found both in males and females are called autosomes.
the spread of cancer cells beyond their original site.
parts of the body that have cancerous tumors are exposed to concentrated beams of high-energy radiation, which often harm cancer cells more than normal cells.