NSCI 1404 Study Guide - Midterm Guide: Oviduct, Gonadotropin, Corpus Luteum
2 Oct 2016
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Animal reproduction: mechanisms of asexual reproduction and examples of organisms in which it occurs. Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes and almost never changes the number of chromosomes. Asexual reproduction is the primary form of reproduction for single-celled organisms such as the archaebacteria, eubacteria, and protists. Many plants and fungi reproduce asexually as well. Gametogenesis is a biological process by which diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes. In spermatogenesis- infinite # of sperm available @ puberty; one spermatigonium undergoes mitosis/ growth and then mi & mii resulting in 4 sperm cells; occurs in testes. Be able to discuss the reproductive biology of fishes, amphibians, reptiles, birds, and mammals in relationship to the transition between aquatic and terrestrial existence (e. g. external vs. internal fertilization).
