Reproduction

Reproduction - Asexual no fusion of sex cells; usually...

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Asexual – no fusion of sex cells; usually involves mitotic divisions i.e. budding, fragmentation parthenogenesis – (virgin birth) fends that reproduce without males. Usually in a population almost entirely female o females produce eggs ; asexual reproduction o i .e. honey bees queen that can reproduce; makes egg by mitosis worker bees = female, cannot reproduce, diploid drones = haploid male bees that produce sperm by mitosis fertilize eggs which become worker bees sexual reproduction the unfertilized haploid eggs become haploid drones asexually interspecific hybrids sexual reproduction – fusion of gametes hermaphrodite – has both male/female reproductive organs o i. e. tapeworm, sponges human reproduction: (fig 48-9 48-10) o female : ovaries store egg cells, produce steroid hormones; egg cells released into body cavity, then oviduct & then moves to uterus (womb) smooth walls, muscle o endometrium – innermost layer of uterus; is shed in menstrual flow o oogenesis – egg productionl occurs in ovary follicles - - site of egg production each follicle has potential to make eggs oogonia – cells capable of mitotic division to produce more oogonia o
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This note was uploaded on 11/09/2011 for the course BIO 102 taught by Professor Brey during the Spring '08 term at Rutgers.

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Reproduction - Asexual no fusion of sex cells; usually...

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