FOR CASE STUDY TEACHING IN SCIENCE An Unusual Case of Animal Reproduction by Joann B. Powell Department of Biological Sciences Clark Atlanta University‚ Atlanta‚ GA Elethia W. Tillman Department of Biology Spelman College‚ Atlanta‚ GA Part I – Andrea Smith’s Dilemma Andrea Smith was taking notes for her biology exam. Her professor has told her that the exam would cover‚ in part‚ the differences between sexual and asexual reproduction. As she reviewed her notes and prepared for today’s class‚ she
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Symposis of General Embryology Professor Adel K.AbdelMalek MbChB‚MsC‚MMed‚Ph.D 2013 CONTENTS 1 Intoduction 1 2 Gametogenesis 5 Spermatogenesis 6 Oogenesis 9 3 Female reproductive cycles 12 Ovarian cycle 12 Menstrual cycle 15 4 Fertilization 18 Contraceptive methods 20 Infertility 21 Cloning 23 5 Early embryonic
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Reproduction is the biological process by which new individual organisms – "offspring" – are produced from their "parents". Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. There are two forms of reproduction: asexual and sexual. In asexual reproduction‚ an organism can reproduce without the involvement of another organism. Asexual reproduction is not limited to single-celled organisms. The cloning of an organism is a form of
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The relationships between plant reproduction and human reproduction are that they both create an egg. There are feminine and masculine parts wanted in both progressions. Both produce descendants by sexual reproduction. The change among plant reproduction and human reproduction include that in pinnacle plants you have to plant the seed before it will develop into whatsoever‚ and in human reproduction you do not have to plant the seed it take a long procedure. Flowering plants create many more offspring
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• Is this a case of eugenics? "Eugenics" is defined as "the hereditary improvement of the human race controlled by selective breeding" (dictionary.com) Eugenics is a social philosophy which advocates the improvement of human hereditary traits through various forms of intervention. The purported goals have variously been to create healthier‚ more intelligent people‚ save society’s resources‚ and lessen human suffering. Earlier proposed means of achieving these goals focused on selective breeding
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The Cellular Basis of Reproduction and Inheritance Chapter 8 Order Reproduction Growth and development Energy processing Response to the environment Regulation Evolutionary adaptation http://www.youtube.com/watch?v=46Xh7OFkkCE Introduction Cancer cells start out as normal body cells undergo genetic mutations lose the ability to control the tempo of their own division run amok‚ causing disease In a healthy body‚ cell division allows for: growth the replacement of damaged cells development from
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The scrotum is a sac-like organ made of skin and muscles that houses the testes. It is located inferior to the penis in the pubic region. The scrotum is made up of 2 side-by-side pouches with a testis located in each pouch. The smooth muscles that make up the scrotum allow it to regulate the distance between the testes and the rest of the body. When the testes become too warm to support spermatogenesis‚ the scrotum relaxes to move the testes away from the body’s heat. Conversely‚ the scrotum contracts
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CHAPTER 2 SEXUAL REPRODUCTION IN FLOWERING PLANTS 2.1 2.2 2.3 2.4 2.5 Flower – A Fascinating Organ of Angiosperms Pre-fertilisation : Structures and Events Double Fertilisation Post-fertilisation: Structures and Events Apomixis and Polyembryony Are we not lucky that plants reproduce sexually? The myriads of flowers that we enjoy gazing at‚ the scents and the perfumes that we swoon over‚ the rich colours that attract us‚ are all there as an aid to sexual reproduction. Flowers do not exist only
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Frankenstein and Male Reproduction Mary Shelley ’s character of Dr. Victor Frankenstein in Frankenstein‚ The Modern Prometheus‚ is driven to madness by his envy of women and their ability to reproduce so much so that he tries to reinvent the nature of reproduction without the female with disastrous results. Dr. Frankenstein ’s scientific experiment‚ which produces a deformed‚ human from spare body parts is a commentary on male reproduction and predicts the bioethical consequences of the modern
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Art In the Mechanical Age of Reproduction Walter Bejamin (Note: Footnote numbers appear thus: . The notes are at the end of the file.) "Our fine arts were developed‚ their types and uses were established‚ in times very different from the present‚ by men whose power of action upon things was insignificant in comparison with ours. But the amazing growth of our techniques‚ the adaptability and precision they have attained‚ the ideas and habits they are creating‚ make it a certainty that profound
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