Term used when fibers are short and visible,-only occurs when a cell is dividing.
One strand on a double-stranded chromosome.
Holds together two chromatids.
Cell division involving all cells except the sex cells and gametes.
The regular sequence of growth and division that cells undergo.
What has to occur before cells divide?
DNA and histone protein
What makes up the chromosome?
Long fibers wrapped around eachother
Chromatin to chromosome
DNA wraps around the histone protein
Two daughter cells-each having a diploid chromosome number
Parent cell and a diploid chromosome number
Full chromosome count
Stage a cell will spend the most time in and has three parts.
First stage of interphase, a cell will grow and carry out functions.
Second phase of interphase, DNA replication.
Third phase of interphase, cell will produce substances for cell division.
After interphase, has two parts: mitosis &cytokinesis.
Division of nucleous(DNA), has four stages: prophase, metaphase, anaphase,telophase.
Nuclear membrane and nucleolus disappear (lysosome digest them).
Chromatin shorten to chromostome, chromatin wrap around histone protein.
Centriole will split, two pieces move to the sides of the cells, both centriole form astral rays and it is called an aster.
Fibers will form from aster to aster, called polar fibers.
Fibers formed from aster to aster.
Kinetochore fibers or tractions fibers
Fibers fromed from aster to the middle of the cell.
The whole structure of asters, polar fibers, and kinetochore fibers.
Chromosomes line up in the middle of the cell.
Kinetochore fibers attach to the centromere of the chromosome.
The centromere splits, single stranded chromosomes move to the sides, or poles of the cell.
The spindle disappears.
In both cells, nuclear membrane and nucleolus appear.
Chromosome unwrap and lengthen back to chromatin.
Division of the cytoplasm.
Which increases more rapidly in ratio, surface area or volume?
Unicellular organism splits in half. Both organisms are genetically identical. Ex: Bacteria.
A lump of tissue forms on the side of a parents, the lump continues to grow until you have a fully developed organism attached to the side. Offspring can stay attached, or fall off. Ex: Coral, sponges.
Parent produces a special cell called a spore and it becomes airborn. Eventually it deposits and developes into the original organism. Ex: Mushroom, mold.
Ex: strawberry runners and eyes on a potatoe.
The division of sex cells or gametes.
Process of producing sex cells.
Name of the sperm in prophase 1.
Name of the sperms in telophase 1.
Name of four sperms in telophase 2.
Name of the egg in prophase 1.
One cell that developes into the ovum.