IB Biology Cell Division

Front

Cell division results in

Back

genetically identical cells

Front

Eukaryotic chromosomes are made up of

Back

chromatin

Front

Each single chromosome contains one very lone, linear DNA molecule that carries several hundred to a few thousand

Back

genes

Front

When a cell is not dividing, and even as it duplicates the DNA in preparation for cell division, each chromosome is in the form a of along thin __________________fiber

Back

chromatin

Front

After DNA duplication, the chromosomes ______________: each chromatin fiber becomes densely coiled and folded making chromosomes smaller and shorter

Back

condensed

Front

Each duplicated chromosome has two ____________________________ each containing identical DNA molecules

Back

sister chromatids

Front

In its condensed form, the duplicated chromosome has a narrow 'waist' at a specialized region called the ______________________ where the two sister chromatids are most closely attached.

Back

centromere

Front

Later in cell division, the two sister chromatids of each duplicated chromosome separate and move into two new ____________________

Back

nuclei

Front

Once the sister chromatids separate they are considered to be individual

Back

chromosomes

Front

Mitosis is the division of the _____________cytokinesis is the division of the ________________

Back

nucleus, cytoplasm