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3.3 Overview
Term | Definition |
---|---|
Allele | one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. |
Autosome | any chromosome that is not a sex chromosome. |
Chromosome | a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes. |
Dominant Trait | where a gene exists in two allelic versions, three combinations of alleles are like AA or Ab |
Genetic Material | it is encoded either in DNA or, for many types of viruses, in RNA. |
Genotype | the genetic constitution of an individual organism |
Heredity | the passing on of physical or mental characteristics genetically from one generation to another. |
Homologous Chromosomes | are chromosome pairs of approximately the same length, centromere position, and staining pattern, with genes for the same characteristics at corresponding loci |
Karyotype | the number and visual appearance of the chromosomes in the cell nuclei of an organism or species. |
Meiosis | a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores. |
Mitosis | |
Mutation | |
Pedigree | |
Phenotype | |
Recessive Trait | |
Sex Chromosome |