click below
click below
Normal Size Small Size show me how
Science Vocab 2
Cell Division and Sex-Cell Formation: Mitosis and Meiosis
Term | Definition |
---|---|
Chromosome | Thread-like structure in a cell that contains genetic information |
Mitosis | Process by which a cell divides into two identical daughter cells. |
Chromatid | one of the identical halves that makes up a chromosome. Each chromosome is made up of two halves that have the same genetic information. |
Centromere | Structure that hold together each pair of chromatids |
Gamete | Specialized reproductive cells involved in sexual reproduction. |
Diploid Cell | A cell that has a double set of chromosomes... one set from each parent. |
Haploid Cell | A cell that contains only a single set of chromosomes. |
Meiosis | Process whereby special cells divide to form the sex cells. These sex cells are called haploids because they have half the number of chromosomes. |
Homologous Chromosomes | Description of chromosomes that occur in pairs. |
Crossing Over | Process by which a pair of chromosomes (homologous chromosomes) change portions of their genetic material. |