ANSC 1011 Lecture Notes - Lecture 8: Uterine Horns, Oviduct, Asexual Reproduction
Document Summary
Reproduction is the process whereby individual organisms produce offspring to continue their genetic lineage and is essential in all species. Asexual reproduction results in an offspring that is a clone of the single parent: primarily occurs in single-celled organisms. Sexual reproduction requires fusion of 2 parental gametes to form genetically unique. Reproduction is the most economically important trait in farm animal production: production of you is the primary determinant of income in most species. Increasing reproductive efficiency will increase financial returns. offspring: occurs in animals and plants, *results in genetic variation* Gamete: the reproductive cells: sperm in males, oocyte in females, testes in males, ovary in females. Gonad: the sex organs, where gametes are produced. Fertilization of oocyte by sperm in oviduct. Zygote develops into fetus in oviduct and uterus. Species differences: simplex: no uterine horns, bicornuate: poorly to moderately developed uterine horns, duplex: two cervices. Transport of oocyte and sperm between ovary and uterus.
