PLSC 363 Chapter Notes - Chapter 10: Prophase, Genetic Variation, Centromere
Document Summary
Heredity - transmission of traits from one generation to the next. Variation - not exact identical copy of parent. Genetics - scientific study of heredity and hereditary variation. 10. 1 offspring acquire genes from parents by inheriting chromosomes. Genes - coded info in the form of hereditary units. Gametes - reproductive cells transmit genes from one generation to the next. Dna in a chromosome in a nucleus. Somatic cells - all cells in body except gametes. Asexual reproduction - single individual is the sole parent that passes copies of all its locus - genes location on a chromosome genes to its offspring without the fusion of gametes. Clone - group of genetically identical individuals. Sexual reproduction - two parents give rise to offspring that have unique combinations of genes. 10. 2 fertilization and meiosis alternate in sexual life cycles life cycle - generation-to-generation sequence of stages in the reproductive history of an organism, from conception to production of its own offspring.
