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    Sperm Sorting

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    Sperm Sorting Humans have tried for some time to determine the gender of their child while it is still in the womb. Craving sweets or a slower heart rate means you’ll be having a baby girl. Eating a lot of salty foods, having an especially active baby or carrying your baby low means it’s time to start painting the baby’s room blue1. Advances in science have moved us beyond these old wives’ tales and allowed us to exactly determine the gender of a child before it is born through the use of an ultrasound

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    number of fertile sperm. It’s known that with increase in age of the bull you have an increase in scrotal circumference, yielding h... ... middle of paper ... ...damage." Theriogenology: An International Journal of Animal Reproduction. 1 Jul 2011. Web. 1 Dec 2013. Galloway, D., E. Taylor, and et al. "Understanding semen evaluation." Australian Brahman Breeders' Association. Oct 2009. Web. 24 Nov 2013. Menon, Ajitkumar, Herman Barkema, and et al. "Associations between sperm abnormalities, breed

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    Sperm Donation: A Viable Option

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    against the idea of sperm donation at all, suggesting that due to the number of children likely to be born from each donor’s sperm that it will increase the chance of unknown incest (Mroz). Although this could certainly be a reality as thing stand now, stricter regulation would stop this from becoming an issue. Just as there are laws that federally mandate that parents put their children in school, specifically for their betterment, we should also federally mandate that the use of a sperm donor must be

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    Sperm donation has become an effective way to increase conception in single mothers, homosexual couples, and heterosexual couples who suffer from male infertility. Women have two options when choosing a sperm donor. One can receive sperm donation by unknown donors from sperm banks, who are males that remain anonymous and their identity is unknown. Another way to receive sperm is by a known donor who in most cases is a friend of the recipient or a person who is willing to expose their identity and

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    Sperm Whales: Physiology of the Deep Diver

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    most-well known diving cetaceans is the sperm whale (Physeter macrocephalus). The world’s largest carnivore, this massive cetacean makes extremely deep dives for food, mainly squid and octopus, but also fish and sometimes giant squid (Burnie and Wilson 2005). Sperm whales can dive to depths of 400 to 1200 meters, and for durations of up to 138 minutes (Watwood et al. 2006). The majority of sperm whale dives have been reported to last from 33 to 53 minutes (2006). Sperm whales have to overcome several fundamental

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    What is a sperm bank? This is a place where the semen is kept in cold storage for use in artificial insemination. This is the technique used by a couple to get the baby without having sexual intercourse. This method involved third party as a sperm donor. In addition, the sperm donor will be paid for every single donation he has done. It becomes more popular among the couples who cannot conceive their own baby and nowadays, many lesbian couples and single person used this kind of method too. Some

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    Menstruation And Sperm

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    In ‘The Egg and the Sperm’, Martin explains how societies predisposed views can get in the way of real scientific research. However, she starts with posing no opinion, saying she is “intrigued by the possibility that culture shapes how biological scientists describe what they discover about the natural world” (845). It’s not until the next page she acknowledges the harmful effects by pointing out that “the stereotypes imply not only that female biological processes are less worthy than their male

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    The Egg and the Sperm

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    in her essay entitled The Egg and the Sperm, takes this problem of gender stereotype to a new and much more serious level. As an anthropologist, Martin is concerned with the socio-cultural impacts on many different aspects of everyday life, including biology. In doing her research for this article, Martin was trying to uncover suspicions she had about socio-cultural gender stereotypes, and the affects they had on the diction used to describe egg and sperm interactions in numerous biology books

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    with an egg and a sperm to create new individuals. The main ideas which will be addressed in the article are how the egg and sperm reproduce, the challenges the sperm faces to get to the egg, how the egg and the sperm have evolved over time since originally the cells looked the same, proteins are involved in the reproduction, and a discussion on reproductive failure. In Biology class we are learning about protein synthesis and this article discusses protein that help with sperm and egg reproduction

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    sper morphology

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    Irregular Sperm concentration can result in Oligozoospermia,Azoospermia and Cryptozoospermia. Other sperm irregularities include teratozoospermia and asthenozoospermia. Spermatozoa that exhibit abnormal sperm morphology generate excessive ROS(Reactive oxygen species) which results in spermatozoa damaging their own DNA. Elevated ROS - by a disruption of the mitochondrial electron transport in spermatozoa that produce superoxide production due to the high concentration of fatty acids in morphologically

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