where are genes located?
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hey a correction there.... Genes are actually a small string of bases on a dna chain...so a dna chain has many genes.... and these dna are located in the chromosomes...not vice versa. chromsomes are in the nucleus of all cells.
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The DNA which carries genetic information in cells is normally packaged in the form of one or more large macromolecules called chromosomes.\n\nA chromosome, from the Greek χρώμα (color) and σώμα (body) is, minimally, a very long, continuous piece of DNA (a single DNA molecule), which contains many genes, regulatory elements and other intervening nucleotide sequences.
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The nucleus is the centre for cellular organisation. It contains, in eukaryotes, the genome of the organism; i.e. it is where DNA is found. It is the site of coordination of several molecular processes and as a result, any decisions (speaking in broad terms) would have to be made by it. For instance, if a plant cell is in a condition where there is a repellent chemical, receptors on the plasma membrane will signal this situation through cytoplasmic signalling pathways to the nucleus, where genes whose products regulate the the movement of the cell away from that chemical. Thereofre, everything a cell does is pretty much governed by the nucleus. Here I want you to note that it is not only in the nucles DNA is found; it is also in the chloroplasts and the mitochondria. However, the nuclear genome is the one that plays a much larger role in cell growth, development, survival and differentiation.
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Using www.qtsaver.com I found this:\n"efficient strategy for mapping human genes that cause recessive diseases"
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On the plasma membrane of the red blood cell (that's what the others said, and they're right).  \n\nThere is also a gene that some people carry that code for free A and B antigens in body fluids.  These people are called secretors, and the gene is dominant.\nFor example, I am a secretor.  I have determined my blood type by adding antibodies to my saliva, as well as by traditional blood tests.
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gene I think is what you are looking for. Not sure the question makes sence.
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DNA is what makes up our genes.  It is several long chains (polymers) of molecules that contain a 'chemical code' that the body uses to make proteins (proteins are many types of molecules that are necessary for the body to make and run itself).  These long chains of DNA are grouped into 23 different chromosomes.  You have two pairs of each chromosome - one set of 23 from your mom and the other set of 23 from your dad.  So, in total, you have 46 chromosomes in each cell.\n\nEach cell in your body has the same DNA.  But a liver cell is different from a skin cell, etc.  That is because each cell type has access to only certain genes in your DNA (to make the proteins needed specifically for that type of cell).\n\nStructurally, DNA looks like a flexible ladder (like a rope ladder).  The runs of the ladder (the sides) are the long chains or polymers and consist of a sugar group connected to a phosphate group, connected to the next sugar group, and so on.  Between these side chains are pairs of 'bases' - Adenine, Thymine, Guanine, and Cytosine (A T G  C).  These are the actual code that contains the information in your genes.\n\nThe 'ladder' of DNA twists around itself to form a shape called a 'double helix'.\n\nI hope this is helpful to you.  Good luck!
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it's located in the cytoplasm
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Organelles\nMain article: Organelle \nThe human body contains many different organs, such as the heart, lung, and kidney, with each organ performing a different function. Cells also have a set of "little organs," called organelles, that are adapted and/or specialized for carrying out one or more vital functions. Membrane-bound organelles are found only in eukaryotes.\n\nCell nucleus (a cell's information center)  \nThe cell nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell's chromosomes, and is the place where almost all DNA replication and RNA synthesis occur. The nucleus is spheroid in shape and separated from the cytoplasm by a double membrane called the nuclear envelope. The nuclear envelope isolates and protects a cell's DNA from various molecules that could accidentally damage its structure or interfere with its processing. During processing, DNA is transcribed, or copied into a special RNA, called mRNA. This mRNA is then transported out of the nucleus, where it is translated into a specific protein molecule. In prokaryotes, DNA processing takes place in the cytoplasm. \nRibosomes (the protein production machine)  \nRibosomes are found in both prokaryotes and eukaryotes. The ribosome is a large complex composed of many molecules, including RNAs and proteins, and is responsible for processing the genetic instructions carried by an mRNA. The process of converting an mRNA's genetic code into the exact sequence of amino acids that make up a protein is called translation. Protein synthesis is extremely important to all cells, and therefore a large number of ribosomes — sometimes hundreds or even thousands — can be found throughout a cell. \nMitochondria and Chloroplasts (the power generators)  \nMitochondria are self-replicating organelles that occur in various numbers, shapes, and sizes in the cytoplasm of all eukaryotic cells. As mitochondria contain their own genome that is separate and distinct from the nuclear genome of a cell, they play a critical role in generating energy in the eukaryotic cell, a process involving a number of complex metabolic pathways. Chloroplasts are larger than mitochondria, and convert solar energy into a chemical energy ("food") via photosynthesis. Like mitochondria, chloroplasts have their own genome. Chloroplasts are found only in photosynthetic eukaryotes, like plants and algae. There is a number of plant organelles that are modified chloroplasts; they are broadly called plastids, and are often involved in storage. \nEndoplasmic reticulum and Golgi apparatus (macromolecule managers)  \nThe endoplasmic reticulum (ER) is the transport network for molecules targeted for certain modifications and specific destinations, as compared to molecules that will float freely in the cytoplasm. The ER has two forms: the rough ER, which has ribosomes on its surface, and the smooth ER, which lacks them. Translation of the mRNA for those proteins that will either stay in the ER or be exported from the cell occurs at the ribosomes attached to the rough ER. The smooth ER is important in lipid synthesis, detoxification and as a calcium reservoir. The Golgi apparatus, sometimes called a Golgi body or Golgi complex is the central delivery system for the cell and is a site for protein processing, packaging, and transport. Both organelles consist largely of heavily-folded membranes. \nLysosomes and Peroxisomes (the cellular digestive system)  \nLysosomes and peroxisomes are often referred to as the garbage disposal system of a cell. Both organelles are somewhat spherical, bound by a single membrane, and rich in digestive enzymes, naturally-occurring proteins that speed up biochemical processes. For example, lysosomes can contain more than three dozen enzymes for degrading proteins, nucleic acids, and certain sugars called polysaccharides. Here we can see the importance behind compartmentalization of the eukaryotic cell. The cell could not
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dna and genetic coding of chromosomes.
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http://www.google.co.in/search?hl=en&q=multiple+genes&btnG=Search&meta=\n\nhttp://www.newton.dep.anl.gov/askasci/bio99/bio99889.htm\n\nhttp://www.jimmunol.org/cgi/content/full/173/11/6501
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Short answer:\n\nYour genes are a combination of both of your parents genes, and they constitute a full set.  Through meiosis however, a process which creates sperm and egg cells, the cells divide in such a way as to halve their genetic "info".  These halves are carried by the sperm and egg cells, and recombined into a single, new whole through fertilization.
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In cell biology, the nucleus (from Latin nucleus or nuculeus, kernel) is found in all eukaryotic cells and contains the nuclear genes which form most of the cell's genetic material. Nuclei have two primary functions: to control chemical reactions within the cytoplasm and to store information needed for cellular division.
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A hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.
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sex-linked genes which can still be classified into x-linked genes and y-linked genes... ;p
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Genes are components of DNA and RNA. Genes themselves are made up of four materials; I can only remember that two, guanine and cytosine. DNA is found in the nucleus but RNA can be found outside the nucleus but still inside the cell while mitochondrial DNA is found in the mitochondria in the cell. Mitochondrial DNA is passed strictly through the maternal line so your true birth mother can be distinguished this way and your maternal grandmothers dating back quite a distance.
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Those terms are for individual genes, not people. A gene is made up of a pair of alleles, one from each gamete. These alleles can be one of many variations. If the alleles are identical, the gene is homozygous.