how long is a chromosomal dna molecule
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Length of a Human DNA Molecule Chicago: Field Enterprises, 1996. On the average, a single human chromosome consists of DNA molecule that is about 2 inches long.. 2.3 m. The chromosomes in the nucleus of a cell contain all the information a cell needs to carry on its life processes.t is a double-stranded helical macromolecule consisting of nucleotide monomers with deoxyribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and thymine (T). In the chromosomes of a cell, DNA occurs as fine, spirally coiled threads that in turn coils around another, like a twisted ladder.
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- 1 Chromosome: a long, thread-like molecule made of the chemical called DNA (deoxyribonucleic acid) that is held together with special proteins and is visible (with strong microscopes) during cell division...2  more. 3  Molecule: a chemical structure that has two or more atoms held together by a chemical bond. Chromosome: a long, thread-like molecule made of the chemical called DNA (deoxyribonucleic acid) that is held together with special proteins and is visible (with strong microscopes) during cell division...
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Chromatin Chromatin and Chromosomes. Packed inside the nucleus of every human cell is nearly 6 feet of DNA, which is subdivided into 46 individual molecules, one for each chromosome and each about 1.5 inches long. Collecting all this material into a microscopic cell nucleus is an extraordinary feat of packaging.onsequently, during interphase, DNA is combined with proteins and organized into a precise, compact structure, a dense string-like fiber called chromatin, which condenses even further into chromosomes during cell division.
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DNA: Definition, Structure & Discovery DNA molecules are long — so long, in fact, that they can't fit into cells without the right packaging. To fit inside cells, DNA is coiled tightly to form structures we call chromosomes. Each chromosome contains a single DNA molecule. Humans have 23 pairs of chromosomes, which are found inside the cell's nucleus.he order of these bases is what determines DNA's instructions, or genetic code. Similar to the way the order of letters in the alphabet can be used to form a word, the order of nitrogen bases in a DNA sequence forms genes, which in the language of the cell, tells cells how to make proteins.
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- The human DNA's length is: If completely unraveled, human DNA would stretch from the Earth to the Moon. If you stretch it and not unra … vel it, the distance is on average about 6 ft. (2 m) long, but is a very thin thread.The single human chromosome on average consists of DNA molecules approximately 2 inches long.f stretched out from a single cell, the DNA would be about 2-3m long. The total length of DNA present in one adult human cell is calculated by the multiplication of: (length … of 1 base pair)*(number of base pair per cell) = (0.34 × 10^-9 m)(6 × 10^9) on average. 1 person found this useful.
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Chromatin Chromatin and Chromosomes. Packed inside the nucleus of every human cell is nearly 6 feet of DNA, which is subdivided into 46 individual molecules, one for each chromosome and each about 1.5 inches long. Collecting all this material into a microscopic cell nucleus is an extraordinary feat of packaging.uchromatin is the genetically active type of chromatin involved in transcribing RNA to produce proteins used in cell function and growth. The predominant type of chromatin found in cells during interphase, euchromatin is more diffuse than the other kind of chromatin, which is termed heterochromatin.
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What is the actual length of chromosome 1 (in centimeters)? All Answers (8) The total length of the human genome is over 3 billion base pairs. The genome is organized into 22 paired chromosomes, the X chromosome (one in males, two in females) and, in males only, one Y chromosome, all being large linear DNA molecules contained within the cell nucleus.
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- For example, each human cell has about 1.8 meters of DNA, but wound on the histones it has about 90 millimeters of chromatin, which, when duplicated and condensed during mitosis, result in about 120 micrometers of chromosomes.
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DNA, genes and chromosomes Chromosomes. If you took the DNA from all the cells in your body and lined it up, end to end, it would form a strand 6000 million miles long (but very, very thin)! To store this important material, DNA molecules are tightly packed around proteins called histones to make structures called chromosomes.
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How long is 1 chromosome ? Answers. Best Answer: Every chromosome contains a single molecule of DNA, the skinny, snakelike carrier of hereditary information. If stretched out to its full length, the DNA molecule in a human chromosome would be between 1.7 and 8.5 centimeters (about 0.7 to 3.3 inches) long, depending on the chromosome.But it would be vanishingly thin, less than a millionth of a centimeter across.nswers. Best Answer: Every chromosome contains a single molecule of DNA, the skinny, snakelike carrier of hereditary information. If stretched out to its full length, the DNA molecule in a human chromosome would be between 1.7 and 8.5 centimeters (about 0.7 to 3.3 inches) long, depending on the chromosome.
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3-D Animation Library Each chromosome consists of one continuous thread-like molecule of DNA coiled tightly around proteins, and contains a portion of the 6,400,000,000 basepairs (DNA building blocks) that make up your DNA. The way DNA is packaged into chromatin is a factor in how protein production is controlled.
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- Human Dna in Diploid-Somatic-Cells has the extended Length of 1.87 meters. Sperm and Egg Cells-Gametes-are Haploid Cells, with one half of The Genetic Complement, so the … length is 0.935 meters [repeat-in length-jammed into a Space about three microns across].
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How many DNA strands does a chromosome have? Please use these terms to answer my question. 1 DNA molecule- This means a double helix (2 strands) 1 DNA strand- This means when you break the double helix and one separate strand. I thought one chromatid contain 1 DNA strand and 2 chromatids make a chromosome and 1 DNA molecule. So in a diploid cell you have 46 DNA molecules or 92 strands.
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The Biochemical Reactions The single molecule of DNA that is the E. coli genome contains 4.7 x 10 6 nucleotide pairs. DNA replication begins at a single, fixed location in this molecule, the replication origin, proceeds at about 1000 nucleotides per second, and thus is done in no more than 40 minutes.eplication begins at some replication origins earlier in S phase than at others, but the process is completed for all by the end of S phase. As replication nears completion, bubbles of newly replicated DNA meet and fuse, finally forming two new molecules.
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- In humans, mitochondrial DNA (mtDNA) forms closed circular molecules that contain 16,569 DNA base pairs, with each such molecule normally containing a full set of the mitochondrial genes. Each human mitochondrion contains, on average, approximately 5 such mtDNA molecules, with the quantity ranging between 1 and 15.
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- If stretched out, this DNA molecule would be >1 mm in length, whereas the space occupied by the nucleoid is <1 μm in diameter. Accordingly, the chromosome must be linearly compacted more than 1,000-fold to fit inside the bacterial cell. The DNA is condensed in an orderly and hierarchical fashion, and we describe this compaction and organization from its smallest unit to its largest domain.
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Chemistry (4th Edition) View more editionsSolutions for Chapter 11 Problem 156APProblem 156AP: The average distance between base pairs measured parallel to... The average distance between base pairs measured parallel to the axis of a DNA molecule is 3.4 Å. The average molar mass of a pair of nucleotides is 650 g/mol. Estimate the length in centimeters of a DNA molecule of molar mass 5.0 × 10 9 g/mol. Roughly how many base pairs are contained in this molecule?
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- The total length of the human genome is over 3 billion base pairs. The genome is organized into 22 paired chromosomes, plus the X chromosome (one in males, two in females) and, in males only, one Y chromosome.These are all large linear DNA molecules contained within the cell nucleus.he total length of the human genome is over 3 billion base pairs. The genome is organized into 22 paired chromosomes, plus the X chromosome (one in males, two in females) and, in males only, one Y chromosome.
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The many origins of replication on the DNA molecules of eukaryotic cells act to? For example, the entire genome of E. coli (4 x 10^6 base pairs) is replicated from a single origin in approximately 30 minutes. If mammalian genomes (3 x 10^9 base pairs) were replicated from a single origin at the same rate, DNA replication would require about 3 weeks (30,000 minutes).
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Length of a Human DNA Molecule To get a sense of exactly how long an uncoiled DNA molecule is compared to a typical cell, a cell is magnified 1000 times. At this scale, the total length of all the DNA in the cell's nucleus would be 3 km -- the equivalent distance of the Lincoln Memorial to the capital in Washington, DC..3 m. The chromosomes in the nucleus of a cell contain all the information a cell needs to carry on its life processes. They are made up of a complex chemical (a nucleic acid) called deoxyribonucleic acid, or DNA for short.
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- Most eukaryotic cells have a set of chromosomes (46 in humans) with the genetic material spread among them. During most of the duration of the cell cycle, a chromosome consists of one long (its width to length ratio is about 1:65,000,000) double-helix DNA molecule (with associated proteins).
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How many of DNA molecules in a normal body cell Best Answer: Each nucleus in a diploid human cell has 46 chromosomes . Each chromosome is made of 2 chromatids. Each chromatid is 1 DNA molecule. This gives 92 DNA molecules in the nucleus. Mitochondrial DNA (mtDNA) is present in mitochondria as a circular molecule and in most species codes for 13 or 14 proteins. The number of mitochondria in a cell depends on the cell's function.
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- That is correct. No, this is true if 2000 bp of DNA is wrapped around each histone core. Since 200 base pairs of DNA are wrapped around each histone core, that means about 60 nm of DNA have been reduced to the width of 11 nm — a factor of six. This is the packing ratio.In the 30-nm fiber, the nucleosomes are arranged in groups of six.A group of six nucleosomes has 1,200 bp of DNA.hat is correct. No, this is true if 2000 bp of DNA is wrapped around each histone core. Since 200 base pairs of DNA are wrapped around each histone core, that means about 60 nm of DNA have been reduced to the width of 11 nm — a factor of six. This is the packing ratio.
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Chromatin Chromatin and Chromosomes Packed inside the nucleus of every human cell is nearly 6 feet of DNA, which is subdivided into 46 individual molecules, one for each chromosome and each about 1.5 inches long.Collecting all this material into a microscopic cell nucleus is an extraordinary feat of packaging.acked inside the nucleus of every human cell is nearly 6 feet of DNA, which is subdivided into 46 individual molecules, one for each chromosome and each about 1.5 inches long.
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How many base pairs are in one molecule of DNA? · just now. 1  Base pairs make up part of a DNA molecule. Each stand of DNA is made of a base, a sugar and a phosphate group. 2  There are about 25,000 base pairs in one human DNA molecule (one double-helix), however some animals have DNA that is 2,000,000 base pairs long. One DNA molecule is made up of two polynucleotide strands that form a double-helix using hydrogen bonds between the nitrogenous bases. A chromosome is one DNA molecule.
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What is the length of DNA found in a single human chromosome? Answer by Chuckgilbert. Confidence votes 4. Chromosomes vary in size, but the DNA would generally be a few cm (inches). The total length of one copy of all chromosomes is about 1 meter (a little over 3 feet).Since you have one copy from each parent, the total is about 2 meters per cell.nswer by Chuckgilbert. Confidence votes 4. Chromosomes vary in size, but the DNA would generally be a few cm (inches). The total length of one copy of all chromosomes is about 1 meter (a little over 3 feet).