Gene- basic unit of heredity, consisting of a DNA segment located on a chromosome 17. Chromosome- threadlike structure in the cell nucleus, along which the genes are located 18. Egg- female reproductive cell 19. Sperm- male reproductive cell 20. Zygote- cell arising from the union of an egg and a sperm cell 21. X
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One of those is called Azoospermia. In a normal male, the testicles in the scrotum produce sperm that flows through the epididymis, vas deferens, and seminal ducts. Sperm mixes with fluid in the seminal ducts to form semen. Azoospermia is a condition where there are no sperm in the semen. Non-obstructive Azoospermia refers to abnormal sperm production and obstructive Azoospermia refers to normal sperm production with some sort of obstruction. Many years ago there wasn’t much hope for those with
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When does life really begin? Is it when the first fluttering beats of the primitive heart of a fetus start, or when the child is pushed from the womb into the world? Does it all actually start at the moment of conception when the egg and sperm meet and mix their genetic code together to create a new being. Who can say really. No one knows because no one is sure of when life truely begins. There are many out there who say an unborn child isn't really a person, or even alive because it can not sustain
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organisms. In humans, there is an X chromosome and a Y chromosome that determines the sex of the offspring. A male has an X and Y chromosome, whereas a female has two X chromosomes. The sex of an offspring is determined by whether the sperm cell that fertilizes the egg is made up of an X or a Y chromosome; ultimately the male is the determining factor of the sex of the offspring. Even though the Y chromosome determines if the offspring will be male, the X chromosome has genes that control certain human
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chromosomes in every cell, with 23 inherited from each parent. It's the most common genetic chromosomal disorder and the cause of learning disabilities in children. Trisomy 21 is caused by a messed up cell division called nondisjunction, which leaves a sperm or egg cell
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Organ Structure |Function |Structure | | |Respiratory system | | | |[pic] |To fill up with air that we breathe in and change|Strong muscles are attached to the ribs to | | |the carbon dioxide into oxygen, to be transported|support
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determined by her physician. The contemporary issue that surrounds abortion is when does life begin because that questions decides whether you are killing a human or not. Many Christians that hold a biblical worldview will say it begins when the egg meets the sperm. A non-Christian would say it begins at a certain trimester and or when the baby is born. These two views can be worded as pro-choice and pro-life. The biggest issue that separates the two is whether it is morally right or wrong to kill a baby
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Angela’s Story: A Case Study on the Reproductive System You are a columnist for a popular website that deals with women's health issues. Visitors to the site can submit their stories and questions through an “Ask the Expert” link on the site. In this scenario, a 26-year-old woman has posted her story and some questions regarding reproductive health. My name is Angela. I am a 26-year-old married woman with no children. My husband, Doug, and I have been trying to get pregnant for over two
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Mitochondrial Disease Victoria Yang Anatomy and Physiology 1 Section 009, Richard Adams, October 21, 2015 Mitochondrial diseases result from failures of the mitochondria, specialized compartments present in every cell of the body except red blood cells. Mitochondrial disease is an inherited neurological disorder that underlies many very common illnesses of adulthood, including Alzheimer’s, dementia, Parkinson’s disease, diabetes, hypertension, heart disease, osteoporosis, cancer, and even the aging
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produces infertile eggs in her ovaries. The males will begin searching for females and once they find one they will attach their special claws to the female and cling to them from an hour to a week. Eventually the female will lay her eggs on the shore in clusters of 2,000 to 30,000 eggs per each nest (Horseshoe crab, Limulus polyphemus, n.d.) The male will then disperse his sperm atop the eggs. As stated by Horseshoe crab (n.d.) the females lay an estimated of 90,000 eggs a
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