11:067:327 Lecture Notes - Lecture 1: Petri Dish, Estrous Cycle, Human Chorionic Gonadotropin
25 Apr 2016
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Transferred nucleus from adult cell to egg without dna. Low success rate 277 eggs, 29 embryos, 1 dolly. Cytoplasmic donor (black) egg & nuclear donor (white) mammary. Generates offspring identical to each other and parent (only one parent) Germ cells differentiate without sperm into a genetically identical organism. All female females produce eggs that develop without fertilisation. Germ cells produce gametes (sperm & oocyte with genetic material of each) Birth triggers ovulation sexual maturity/puberty: 30-35 days. Food animals more food, profit for producer. Overpopulation animal damage control, resource depletion. Suboptimal production of animal products, less food, less profits. Get all animals to be estrous simultaneously makes breeding easier. Frozen semen allow for ease in insemination. Sex selection (xy, inc. & microsort inc. ) Separate sperm based on dna content (x sperm > y sperm) X-sort enriches x-bearing sperm by 85% Y-sort 73% increase in y-bearing sperm. Purpose family balancing and prevention of sex-linked disease.
