Pinching off in the centre as cytoplasm moves to opposite poles
Cleavage
Chromosomes become visible; centriole divides and moves to opposite poles of the cell; nuclear membrane fades
Prophase
Process of cell activity between divisions; cells are not actively dividing
Interphase
Originate from a single egg; during mitosis, one of the cell breaks free and a second embryo develops
Identical Twins
A mass of cancerous cells within an otherwise normal tissue
Tumor
1 of 2 copies of a replicated chromosome
Chromatid
Phase in which mitosis occurs in somatic cells
Mitotic Phase
Spindle fibers dissolve; nuclear membrane begins to form around each mass of chromatin
Telophase
Examples of how to do this are budding and runners; process requires delaying cell specialization
Plant Cloning
Impairs the function of one or more organs; "cancer"
Malignant Tumor
Uncondensed form of chromosomes found in interphase
Chromatin
Division of cytoplasm and distribution of organelles to daughter cells
Cytokinesis
Cell prepares for mitosis by building new proteins, new cell membranes, and new enzymes
Gap 2
Process in which an unfertilized egg becomes enucleated, then nucleated by a nucleus of another embryo; egg cell with transplanted nucleus divides normally and grows to adulthood
Animal Cloning
Telomerase
Organelles that divide and move to opposite poles of cell in prophase; provide attachment for spindle fibers
Centriole
Cell growth before DNA replication
Gap 1
DNA is duplicated
S Phase
Hollow ball of cells of an embryo; early stage of development
Blastula
Formed when cancerous cells remain at site; do not usually cause serious problems and can be removed by surgery
Benign Tumor
Joins chromatids together to make a chromosome
Centromere
Sister chromatids move toward the equatorial plate
Metaphase
Centromeres divide; chromatids move to opposite poles of cell
Anaphase
Describes a nucleus that is able to bring a cell from egg to adult
Totipotent
The dislodging and moving of tumor cells to another area
Metastasis