University of Perpetual Help System Dalta High School Department Molino 3‚ Bacoor‚ Cavite Assignment In Science Jerome Richard Tan II – Jupiter 1. What do you think is the function of the nictating membrane‚ and why ? The nictitating membrane is a protective‚ semi-transparent third eyelid. It allows vision while giving the eye extra protection. In the case of frogs‚ the protection is needed when the frog is out of the water. The clear nictitating membrane allows the frog to keep
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Reproduction Grand Canyon University HLT 318V December 19‚ 2010 Abstract: In this paper I will discuss the ethical issues surrounding surrogacy‚ egg donation‚ and discuss exploitations of women who choose to become a surrogate mother. In addition to these moral issues I will also explore the ethics and morals of IVF and the implantation of multiple eggs to one subject that may result in multiple births. In the occurrence of multiple births the subject is faced with the decision of selective abortion
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dystrophin. it sometimes occurs in people without a family history of Duchenne. Meiosis is a process where a single cell divides twice to make four cells that only have half the original amount of genetic information. These cells are our sex cells; sperm in males‚ eggs in females.
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develop with protective sheaths of cells. This was an adaptation that allowed plants to become hardier. Mosses have two sexes of gametangia; the male gametangium is called an antheridium‚ and the female is called an archegonium. Eggs are produced in the archegonium and sperm in the
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wife. They would only want fertility help to be given to married couples. Catholics firmly believe that just because science makes something possible it doesn’t mean that it is right. Catholics believe that life begins at conception. When an egg and sperm meet‚ a life is created that is independent of the mother and father. Any techniques used to aid infertility must respect this fact. For this reason‚ Catholics cannot allow for any fertility treatment where spare embryos are created. Embryos‚
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in-vitro fertilization and artificial insemination‚ has made it possible to select and fertilize gender specific sperm. Scientists use a technology called MicroSort to select gender specific sperm. “MicroSort is based on the premise that girl-producing sperm‚ which carry X chromosomes‚ are bigger than the boy-producing sperm‚ which carry Y chromosomes. The procedure involves coloring a sperm sample with fluorescent dye and then zapping it with a laser that illuminates the dye. The bigger X chromosomes
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plants with true roots - gymnosperms = “naked seeds” - cones/strobili - have seeds that develop on the surfaces of sporophylls instead of in ovaries like angiosperms - microsporangium produces pollen grains (sperm) and the megasporangium produces the egg - sporophyte generation is dominant - no water needed for fertilization – pollen travels with the wind Pine trees - monoecious (separate male and female cones on the same plant) - have needle-shaped
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genetic material‚ either sperm or an ovum‚ to create a foetus Pregnancy Planned- involves a strategic choice on when to parent. There are physical‚ emotional and economic impacts that result from this decision Unplanned- may result from poor knowledge about contraception‚ the fertility cycle or failure with contraception such as a condom tearing IVF and GIFT In-vitro fertilisation • Occurs outside the body • Drug treatment is used to stimulate the maturation and number of ova • Egg follicles are monitored
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chromosomes are there in one full set of chromosomes in the grey wolf? User’s Answer: 39 Question 3: How many sets of chromosomes are there in the lung cells of a grey wolf? User’s Answer: 2 Question 4: How many sets of chromosomes do eggs from a grey wolf contain? User’s Answer: none of the above Question 5: What is the correct order of the phases of
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used to prevent pregnancy termination in pregnancies with high risks of a sex linked genetic disease. Process The IVF procedure consists of ovarian stimulation‚ egg retrieval‚ egg fertilization‚ embryo development‚ and embryo transfer. Ovarian stimulation is needed to produce multiple eggs‚ laboratory tests are conducted to monitor the eggs.
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