BISC 1111 Chapter Notes - Chapter 13.1-13.3: Y Chromosome, Gametogenesis, Heredity
8 Feb 2017
School
Department
Course
Professor
Document Summary
The transmission of traits from one generation to the next is called inheritance, or heredity: along with inherited similarity, there is also variation. Genetics is the scientific study of heredity and hereditary variation. Parents endow their offspring with coded information in the form of hereditary units called genes: our genes program the specific traits that emerge as we develop from fertilized eggs into adults. Inherited information is passed on in the form of each gene"s specific sequence of dna nucleotides. In animals and plants, reproductive cells called gametes, are the vehicles that transmit genes from one generation to the next. A ge(cid:374)e"s specific locatio(cid:374) alo(cid:374)g the le(cid:374)gth of a chro(cid:373)oso(cid:373)e is called the ge(cid:374)e"s locus. In sexual reproduction, two parents give rise to offspring that have unique combinations of genes inherited from the two parents. A life cycle is the generation-to-generation sequence of stages in the reproductive history of an organism. From conception to production of its own offspring.
