are germ cells located in the human body?
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Germ cells are cells that create reproductive cells called gametes. Germ cells are located only in the gonads and are called oogonia in females and spermatogonia in males. In females, they are found in the ovaries and in males, in the testes.
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The human body consists of millions of cells; each cell (liver, intestinal etc) contains 23 pairs of chromosomes except for germ cells (egg and sperm) and red blood cells. Thus a total of 46 chromosomes are present in human cells.
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Meiosis occurs in the sex cell of human body. They are present in the form of sperms cell in males and in female they are present in the form of eggs. ... Meiosis happens in the sex cells, so the sperm and egg cells in the human body, to make significantly a greater amount of themselves.
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Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. ... These cells develop into sperm or ova. The ova mature in the ovaries of females, and the sperm develop in the testes of males.
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All cells in a higher eukaryote (like us) are diploid EXCEPT...for the germ cells eggs and sperm. Germ cells have only half the number of chromosomes as a diploid cell one of each pair - and are termed haploid (n). In a human egg or sperm, there are 23 chromosomes, one of which is an X or Y.
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The germinal stage begins at conception when the sperm and egg cell unite in one of the two fallopian tubes. The fertilized egg is called a zygote. Just a few hours after conception, the single-celled zygote begins making a journey down the fallopian tube to the uterus.
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The testes, or testicles, are normally located within the scrotum. The left testicle usually lies slightly behind the right. Each testicle is oval in shape and thicker in the middle than from side to side.
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CHAPTER 6 Meiosis and Mendel Your body is made of two basic cell types. One basic type are somatic cells, also called body cells, which make up almost all of your tissues and organs. The second basic type are germ cells, which are located in your reproductive organs.
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Expert Answer The human body consists of millions of cells; each cell (liver, intestinal etc) contains 23 pairs of chromosomes except for germ cells (egg and sperm) and red blood cells. Thus a total of 46 chromosomes are present in human cells.
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These stem cells are found in small numbers in most adult tissues, such as bone marrow or fat. Compared with embryonic stem cells, adult stem cells have a more limited ability to give rise to various cells of the body.
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Most people think of the gonads as the male testicles. But both sexes have gonads: In females the gonads are the ovaries, which make female gametes (eggs). The male gonads make male gametes (sperm). When a baby girl is born, her ovaries contain hundreds of thousands of eggs, which stay inactive until puberty begins.
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Conception occurs when a sperm cell from a fertile man swims up through the vagina and into the uterus of a woman and joins with the woman's egg cell as it travels down one of the fallopian tubes from the ovary to the uterus.
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The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23). Thus, in humans 2n = 46.
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As well as being chemical-producing glands, testicles are gonads. ... The glands in their bodies that do the same sort of jobs as testicles are called ovaries. They have two ovaries, but unlike testicles, ovaries are inside the body, on either side of the uterus. They release ova (or eggs) and female hormones.
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Scientists are discovering that many tissues and organs contain a small number of adult stem cells that help maintain them. Adult stem cells have been found in the brain, bone marrow, blood vessels, skeletal muscle, skin, teeth, heart, gut, liver, and other (although not all) organs and tissues.
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Oogenesis. Oogenesis occurs in the outermost layers of the ovaries. As with sperm production, oogenesis starts with a germ cell, called an oogonium (plural: oogonia), but this cell undergoes mitosis to increase in number, eventually resulting in up to one to two million cells in the embryo.
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gamete. Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.