BIOL 1108 Chapter Notes - Chapter 42: Horizontal Gene Transfer, Asexual Reproduction, Sexual Reproduction
Document Summary
E. g. bacteria and archaeons reproduce via binary fission. Horizontal gene transfer can inc genetic diversity of prokar. Can slo get diversity by getting genetic material from environ and viral infections. Basis of asexual reprod in many eukar. Seen in fungi, plants, and some animals. A bud, or protrusion, forms on an organism and eventually breaks off to form a new organism that is smaller than parent. E. g. the budding yeast (which makes bread and beer) New individ arise asexually by the splitting of one organism into pieces, ea of which develops into a new individ. Females produce eggs that are not fertilized by males but divide by mitosis and develop into new individ. Either get adult haploid, or dna dbls so adult diploid\ Involves the formation and fusion of gametes. Fusion of meiotic products to restore chromo #s. Zygote divides by mitosis to develop embryo, an early stage of multicell development.
