click below
click below
Normal Size Small Size show me how
8.1 Bio
Term | Definition |
---|---|
Chromosome | in a eukaryote cell, 1 of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA |
Histone | a type of protein molecule found in the chromosome of eukaryotic cells but not prokaryotic cells |
Chromatid | 1 of the 2 strands of a chromosome that become visible during meiosis or mitosis |
Centromere | the region of the chromosome that holds the 2 sister chromatids together during mitosis |
Chromatin | a portion of the cell nucleus made up of DNA and proteins; it is the carrier of the genes in inheritance |
Sex Chromosome | 1 of the pair chromosomes that determine the sex of an individual |
Autosome | any chromosome that is not a sex chromosome |
Homologous Chromosome | chromosomes that have the same sequence of genes, that have the same structure, and that pair during mitosis |
Karyotype | an array of the chromosomes found in an individual's cells at metaphase of mitosis and arranged in homologous pairs and in order of diminishing size |
Diploid | a cell that contains 2 haploid sets of chromosomes |
Haploid | describes a cell, nucleus, or organism that had only 1 set of unpaired chromosomes |