BSC 108 Lecture Notes - Lecture 8: Sister Chromatids, Spindle Apparatus, Homologous Chromosome
9 May 2017
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Biology and society: rain forest rescue: endangered species of plants that normally reproduce sexually can be propagated by asexual reproduction, cell division is at the heart of organismal reproduction, whether by sexual or asexual means. Infertility: a few years ago a sterile couple was willing to pay ,000 to a woman willing to donate her eggs. A sperm and an egg are joined in a petri dish. Ivf is one of many reproductive technologies. The embryo is implanted into the mother"s uterus: when a cell undergoes reproduction, or cell division, two (cid:498)daughter(cid:499) cells are produced that are genetically identical to each other and to the (cid:498)parent(cid:499) May result in the birth of new organisms. Single-celled organisms reproduce by simple cell division. There is no fertilization of an egg by a sperm: some multicellular organisms, such as sea stars, can grow new individuals from fragmented pieces, growing a new plant from a clipping is another example of asexual reproduction.
