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Unit: Heredity
Term | Definition |
---|---|
DNA | A molecule that is present in all living cells and contains the information that determines the traits that a living thing inherits |
Chromosomes | The main ring of DNA |
Cell Cycle | The life cycle of a cell |
Interphase | The period of the cell cycle during which activates such as cell growth and protein synthesis occur without visible signs of cell division |
Mitosis | A process of the cell cycle that forms two nuclei |
Cytokinesis | Division of a cytoplasm |
Homologous Chromosomes | Chromosomes that have the same sequence of genes |
Meiosis | A process in cell division during which the number of chromosomes decreases to half the original number |
Asexual Reproduction | Reproduction that does not involve the union of sex cells |
Sexual Reproduction | Reproduction in which the sex cells from the two parents unite |
Fertilization | A male and female gamete that form a zygote |
Heredity | The passing of genetic material from parent to offspring |
Gene | Instructions for inherited trait |
Allele | An alternative form of a gene that governs a characteristic |
Genotype | The genetic make up of all organisms |
Phenotype | An organism's appearance |
Dominant | An allele that is fully expressed |
Recessive | A masked Allele |
Incomplete | Two Alleles are expressed |
Dominance | |
Codominance | Two alleles are expressed |
Punnett Square | A graph showing genetic cross |
Probability | An event that will probably occure |
Ratio | A comparison of two numbers through division |
Pedigree | A family tree |