| A | B |
|---|
| replication | copying process by which a cell duplicates its DNA |
| DNA polymerase | enzyme that proofreads new DNA strands to help ensure that each strand is a nearly perfect copy of the original |
| cell division | process by whch a cell divides into two new daughter cells |
| mitosis | part of eukaryotic cell division during which the cell nucleus divides |
| cytokinesis | division of the cytoplasm during cell division |
| chromatid | one of two identical sister parts of a duplicated chromosome |
| centromere | area where the chromatids of a chromosome are attached |
| interphase | period of the cell cycle between cell divisions; the resting phase, DNA is replicated |
| cell cycle | series of events that cells go through as they grow and divide |
| centrioles | one of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope |
| spindle | fanlike microtubular structure that helps separate the chromotids during mitosis |
| cyclin | one of the family of closely related proteins that regulate the cell cycle in eukaryotic cells |
| transcription | process in which part of the nucleotide sequence of DNA is copied into a complementary sequence of RNA |
| RNA polymerase | enzyme similar to DNA polymerase that binds to DNA and separates the DNA strand during transcription |
| codon | three nucleotide sequence on messenger RNA that codes for a single amino acid |
| translation | decoding of mRNA message into a polypeptide chain [proteins] |
| anticodon | group of three bases on a tRNA molecule that are complimentary |
| cancer | disorder in which some of the body's own cells lose the ability to control growth |
