Cell Division

Mitosis

100

During this first phase of mitosis, the DNA condenses into the chromosome structure.  The nuclear membrance dissolves and spindle fibers being to stretch across the cell

prophase

200

During this phase, the chromosomes randomly line up in the middle of the cell.

Metaphase

300

During this phase, the chromosomes split apart and pull towards opposite ends of the cell

Anaphase

400

During this phase, the cells begin to pinch apart

telophase

500

This structure sends spindle fibers across the cell

Centrosomes or centrioles

More Mitosis

100

Most of a cell's life if spent in this phase.  The DNA is replicating and the organelles are doing their normal jobs

Interphase

200

Some call this a phase, but it really isn't!  This takes place during telophase when the cytoplasm finally splits resulting in two daughter cells.

cytokinesis

300

These thread like structures pull each pair of chromosomes apart toward the opposite sides of the cell.

Spindle fibers

400

These structures hold both sides of a chromosome together.  The spindle fibers attach to this structure.

centromeres

500

Cells that divide rapidly before cell maturity are called...

cancer

Meiosis

100

Meiosis is made up of _____ (#) cell divisions

2

200

True or False: Meiosis results in 4 identical gametes

False! the cells are all genetically different

300

How many chromosomes are found in a human cell after the Meiosis I?

46

400

How many chromosomes are found in a human cell after meiosis II?

23

500

This is the process where parts of chromosomes switch, leading to unique combinations and 4 genetically different gametes at the end of meiosis

crossing over

Fertilization

100

A female gamete

egg or ovum

200

A male gamete

sperm

300

This type of reproduction requires 1 parent

asexual reproduction

400

This type of reproduction requires two parents

Sexual reproduction

500

After two gametes meet, the two cells become one and are now called a _________

zygote

All in the Genes

100

This is the process of making identical copies of the chromosomes, one for each cell

DNA replication

200

Chromosomes are made up of wound up _____

DNA

300

This is the middle of the chromosome where they are held together.

centromere

400

Cells that have the "typical amount of chromosomes.  In humans, these cells have 46 chromosomes

Diploid

500

Cells that have half the typical amount of chromosomes.  In humans gametes, there are 23 chromosomes.

Haploid