Compare the structure of a prokaryotic chromosome with  that of eukaryotic chromosomes?
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eukaryotic cell\n\n        a. Bounded by a nuclear membrane having pores connecting it with the endoplasmic reticulum (see Fig. 1 and Fig. 2).\n        b. Contains one or more paired, linear chromosomes (def) composed of deoxyribonucleic acid (DNA) associated with histone proteins (def)).\n        c. Nucleolus (def) present.\n        d. Nuclear body is called a nucleus (def).\n\n          o Electron micrograph of a nucleus courtesy of Dennis Kunkel's Microscopy\n\n    prokaryotic cell \n\n        a. Not bounded by a nuclear membrane (see Fig. 3).\n        b. Usually contains one circular chromosome (def) composed of deoxyribonucleic acid (DNA) associated with histone-like proteins.\n        c. No nucleolus.\n        d. Nuclear body is called a nucleoid (def).
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Absolutely nothing to do with chromosome count.\n\n>>>> How closely related are humans to apes and \n>>>> other animals?\n\nIt varies depending on the animal obviously. Around 95% relatedness to chimpanzees. Around 92% for gorillas, as little as 80% for orang-utans. It gets progressively less the  more distant the other species are in evolutionary terms.\n\n>>>>How do scientists measure that?\n\nThere are two basic ways. One is to measure the degree of similarity of the genes, that is the functional parts of the DNA. That generally produces figures quite a bit higher than the ones I gave above. The other is to sequence the entire genome, or large stretches of it and compare it that way. Because those long stretches contain non-coding material they are generally more dissimilar between species.\n\n>>>>Are humans related to plants at all?\n\n\nYep. All living things on this planet are related to some degree. IIRC humans share around 15% of their genes with bananas.
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I don't think so becasue prokaryotes means ''primitive cell'' so eukaryotes come form themm they are ''true cells''. \n\n2. electorn microscoep,- advantges: 3d images, very high resolution.\ndisadvanteges: long time to prepare sample, sample most be dead, electron micrsocope are expensive, and the images are in black and white.\n\n I you want to know how a susbtance enters a cells is better with a light microscope because you cant have a life cell. but i think you could still study it with electron. But take in consideration that disavantages i told you.
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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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prokaryotes have no membrane bounded organelle. its the opposite of eukaryotes. prokaryotes if they have a cell wall is not made up of cellulose but proteins and carbs. the prokaryotes are also smaller than eukaryotes. the ribosomes are the only organelle which is present in prokaryotes.ribosomes are also present in eukaryotes. \n\nexample of eukaryotes: animal cells, plant cells\nexample of prokaryotes: bacteria, cyanobacteria
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Bacteria are prokaryotic organisms. They are mostly unicellular, and they have no nucleus and other cell structures.\n\nProtists and Fungi, on the other hand, are eukaryotes, which are unicellular or multicellular organisms that have a nucleus and complex structures like mitochondria and chloroplasts.\n\nfor more details, go to an encyclopedia website like http://www.wikipedia.org
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Eukaryotic means an organism has a nucleus...prokaryotic means it doesn't have a nucleus.
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the chromosomes group together.
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Its called the centromere, if i understand your question correctly
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DNA replication or DNA synthesis, it is the process of copying a double-stranded DNA strand. Since DNA strands are antiparallel and complementary, each strand can serve as a template for the reproduction of the opposite strand. The template strand is preserved as a whole piece and the new strand is assembled from nucleotide triphosphates. This process is called semiconservative replication. Ideally, the two resulting strands are identical, although in reality there are always errors, though proofreading and error-checking mechanisms exist to ensure a very high level of fidelity.\n\nIn a cell, this step is obligatory prior to cell division. Prokaryotes persistently replicate their DNA and creating a whole, new chromosome is a limiting step in cell division. In eukaryotes, timings are highly regulated and this occurs during the S phase of the cell cycle, preceding mitosis or meiosis I. \n\n\nIf you were to decide to physically “snip” a eukaryotic cell into two halves, it is certain that all of the components you need to allow each half to live and survive would be present in each half – each new cell, EXCEPT for the genetic material, the DNA in the chromosomes. It is a virtual certainty that any attempt to simply physically partition a cell that way would fail to give each new cell the correct genetic complement. That is why a cell undergoes mitosis when it divides asexually, the process of mitosis is essential, it causes each new cell to have a complete set of all of the chromosomes needed to survive and reproduce.
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no! all bacteria (unicellular organisms) are (made up of) prokariotic cells. which means they have no membrane bound organells (such as the nucleus) dna is therefore not separated from the rest of the cell, but forms a single circular loop, sometimes called bacterial chromosome.  bacteria also have smaller loops of dna in the cytoplasms called plasmids.
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They are also called Monera. They lack nuclei and the various organelles of eukaryotes. Prokaryotes possess a single "naked" chromosome consisting of a single DNA molecule without the proteins found in eukaryotes. SOme prokaryotes have plasmids, small circular DNA moleucles, in addition to the major chromosomes.\nBacteria are also prokaryotes
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The top picture looks like it's showing the relative length of genes on sections of a chromosome.  The bands on the picture that shows all of the chromosome are not genes, but regions.  The horizontal line with the vertical lines (pictures 1 and 2) through it is comparing the gene lengths.  Picture 4 looks like the electrophoresis pattern after that region of the chromosome was cut with restriction enzymes.\n\nThe bottom link is essentially the same thing, with (from top to bottom) the chromosome as a whole, the mapping of the genes on that chromosome, the restriction sites on that stretch of DNA, and the chunks of the DNA as they were cut up by restriction enzymes.
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two copies of chromosomes ion the same cell
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At school I was taught that they repreduce by binary fission. I'm sure though that mitosis does ot occur due to the fact that bacteria does not possess a nucleus, therefore mitosis can't occur. \n\nI'm not sure over prokaryotic fission, but my answer would be D, if I had encountered that question.\n\nUse the following as an ideal answer: http://www.expage.com/binaryfission
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also spelled  procaryote,   any self-contained cell or organism that lacks internal unit membranes. Bacteria are among the best-known prokaryotic organisms. Prokaryotes lack a nuclear membrane and most of the components of eukaryotic cells. The cell membrane consists of a phospholipid unit membrane and constitutes the cell's primary osmotic barrier. The cytoplasm includes ribosomes that carry out translation and protein synthesis. The nuclear region usually consists of circular, double-stranded deoxyribonucleic acid (DNA). Many prokaryotes also contain accessory, self-replicating genetic structures, called plasmids, with additional dispensable cell functions, such as encoding proteins to inactivate antibiotics. The flagella are distinct from those of eukaryotes in design and movement. The organelles that are present, such as storage vesicles, are surrounded by a nonunit membrane consisting principally of proteins. See also eukaryote; bacteria.
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In the nucleus, except in preparation for cell division.  Eukaryotes are defined by the presence of a nucleus, with "eukaryote" being greek for "True Nut."  A prokaryotic cell lacks a nucleus.\n\nDNA remains in the nucleus, and RNAs act as messenger molecules to transfer information out for protein synthesis.