segments of DNA that code for a particualar trait are known as what?
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I would call them "gene sequences" or even "coding sequences", rather than just "genes."\n\nIt depends how much you want to get into the molecular genetics. You could discuss which part of the sequence was composed of "introns" and which were "exons".\n\nIf you give a really technical answer to a teacher who is marking tests "by the (simple) book", they might mark it wrong; it has happened to me!
135811
gene I think is what you are looking for. Not sure the question makes sence.
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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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C)gel electrophoresis. \nIn gene splicing ther's cutting of DNA At specific regions. DNA Cloning involves the magnification or production of identical copies of DNA
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1. A DNA molecule refers to just a double stranded molecule but a chromosome is a condensed form of DNA complexed with proteins. An intermediate is the chromatin which is a network of fibrils consisting of DNA and they exist when the cell is not dividing.\n\n2. Prokaryotes have a single chromosme that contains only few proteins and appear as an electron-dense irregular shaped region called the nucleoid which is not enclosed by membrane. If you stretched this out, the chromosome would be a circular loop attached to the plasma membrane of the cell. Also, when they replicate, the replication occurs in two directions at once since the DNA molecule is cirular. Eukaryotes have much more proteins and when not being replicated are in the membrane bound nucleas as chromatin. Then the DNA replicates, it is dones by numerous origins of replication initially called replication bubbles that meet up to form replication forks. The broken segments of this replication method is calked Okazaki framents.\n\n3.Autosomal chromosomes are the rest of the chromosomes that are nonsex and are the same no matter what sex the person is. For example, there are 46 chromosomes in humans and one PAIR is your sex chromosome which determine your sex (girl = XX and boy = XY) while the other 44 are autosomal which you inherited no matter what your sex was.\n\n4. The word "complexity" is hard to define here because it is ambiguous and subjective. To us humans, a zebra may seem less complex since we cant tell them appart, but from the zebra's prospective, their unique stripe patterns differntiate very clearly who is who. At birth, the mother zebra spends 20 min. with its calf so it can memorize stripe patterns. However, understand the aim of the question, the answer is no. There is no proven evidence that shows a direct correlation of chromosome number to complexity. Well, you may think that since there are more chromosomes, these organisms have more alleles coded for them and are thus more complex. Not necessarily true. Some genes code for mutliple traits while others may have multiple genes for one trait. Also the vast number of genes that are coded in a single chromosome is very high. Ex. A Human has 46 chromosomes but a Crayfish has 200! Therefore more chromosomes do not mean higher "complexity" (at least in this implied definition)
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In biology, a trait or character is a feature of an organism. The term phenotype is sometimes used as a synonym for trait in common use, but strictly speaking, does not indicate the trait, but the state of that trait (e.g., the trait eye colour has the phenotypes blue, brown and hazel).\n\nTrait: In genetics, a trait refers to any genetically determined characteristic. In technical terms, a genetic trait is amenable to segregation analysis rather than quantitative analysis.\n\nA dominant lethal trait is a trait that is expressed if present in the genome and therefore precludes having descendants. All such cases must necessarily be sporadic and must represent new mutations, not inherited ones (because a potential parent with the trait would die before being able to pass it along).\n\nA mendelian trait is one that segregates in accordance with the laws of genetics set forth by Gregor Mendel. Sickle cell trait is a mendelian trait. It refers to the situation in which a person has one copy (and one copy only) of the gene for sickle cell but does not have sickle cell disease (which requires two copies of the sickle cell gene). If two people with sickle cell trait have children together, each of their children has a one in four chance (25%) of having sickle cell disease.\n\nA nonpenetrant trait is a genetic trait that is in the genome but does not manifest itself in the individual. By contrast, a penetrant trait is one that manifests itself. If, for example, if 100 people have a particular genetic trait but only 80 of them express it, the penetrance of that trait is 80%.\n\nhttp://www.medterms.com/script/main/art.asp?articlekey=11705\nhttp://en.wikipedia.org/wiki/Trait_(biological)
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Are you looking for all known orthologues of the individual genes in the operon (I assume) or for all occurences of these particular genes in an operon in other organisms (bacteria)?\n\n\n\n/////////\nI would try to look at "HomoloGENE", "Genome" and "UniGene" at the Entrez gateway at the US National Library of Medicine, Nat'l Ctr. for Biotechnology Info. (NCBI) \n\nhttp://www.ncbi.nlm.nih.gov/gquery/gquery.fcgi?itool=toolbar
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DNA is a chain of chemical "building blocks", called "bases", of which there are four types: these can be abbreviated A, T, C, and G. Each base can only "pair up" with one single predetermined other base: A+T, T+A, C+G and G+C are the only possible combinations; that is, an "A" on one strand of double-stranded DNA will "mate" properly only with a "T" on the other, complementary strand;\n\nA= Adenine\nT=Thymine\nC=Cytosine\nG=Guanine\n\nI got this from wikipedia
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Gene Codes produce sequences\nseguence assembly & analysis can be found on genecodes.com\nHope this will help
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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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Genes are portions of chromosomes. In the DNA sequence, there are exons and introns. Exons are spliced out of the DNA sequence and, through trascription and translation using RNA, a protein is made. Different sequences of exons code for different proteins. These proteins are the "information" that is stored in a gene.
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Because you want to test a portion which is unique.  The vast majority of our DNA is exactly like everyone else's- In the normal gene sequence, you might literally have a stretch of 10,000 base pairs without a single difference.  It's like that because it's critical that there not be mutationsm.  The variable regions do not code for proteins, and thus it's not critical that the cell maintain this sequence- It can vary without hurting the cell (or the person).  Because of that, there are a great many mutations in these area, making them unique, and therefore useful for identification.
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Triple stranded DNA is a structure that is formed when a third strand (DNA is normally two strands) pairs with a double stranded coil in an unusual manner. Unlike the normal A-T or G-C basepairing defined by Watson and Crick, the third strand undergoes Hoogsteen basepairing, which allows its unusual confirmation. Although this was postulated by several scientists (even Linus Pauling) it has only been found once in nature, as an intermediate product during DNA recombination.
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When Mendal observed that his 7 traits assorted independantly of each other in peas, he assumed that all traits assorted independantly of all other traits, and made that a law of inheritance.\n\nWell, we know know that's wrong.  We observe that while many pairs of traits assort independantly, many other pairs do not.  Thomas Hunt Morgan's lab first observed that fuit fly eye color was linked to fly sex.  Other people observed that other pairs of traits were not totally completely linked, but that they were not totally independant either.  When two traits were found to not assort completely independantly, the term used to describe that situation was "linkage".\n\nWe now know that linkage happens because genes aren't floating around as perfect little gene spheres, bobbing around the nucleus.  They are arranged "like pearls on a string" on chromosomes.  So genes that are on the same string will not assort independently.  Meiosis will sometimes split them, sometimes not, depending on how close the genes are to each other.  They are physically linked, and we call the dependant assortment linkage too.
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A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA. DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. The sequence of nucleotides determines individual hereditary characteristics.\n\nETYMOLOGY: \nd(eoxyribo)n(ucleic) a(cid)
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1. at a basic level, genetic traits are determined ultimately by the DNA sequence. Differences in the DNA sequence between individuals may result in differences in traits. Differences in the DNA sequence of a gene are known as alleles. \n\n2. The traits determine the characteristics of an organism because the DNA sequence manifests itself as a protein. DNA is transcribed into RNA which is then processed (spliced) into mRNA. mRNA is translated at the ribosome (through the use of tRNA which brings in amino acids) into a polypeptide or protein. Differences in protein sequence may alter protein function thus resulting in an altered trait, also known as a phenotype.
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They are the cells that hold one half of the DNA from the man.  When they foin with the Egg Cell of a woman (that holds one half of her DNA) the result is a full DNA strand tht makes a new person, animan, plant, whatever.