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What is the Pitch of a DNA duplex?
bp/turn of DNADNA have this periodicity in which each base is separated from the other by 36 degree angle so for the base to take a comlete round ( 360 degree ) it will take about 10 bases to do so.To clarify the answer...the residues in the double helix are 3.6 Angstroms apart by a rise of 1.5 Angstroms...if you want to calculate the pitch then you multiply these values and you will get 5.4 Angstroms...this is the pitch of the DNA double helix.
how many amino acids are there in one turn of alpha helix?
3.6 amino acid.
What are major groove and minor groove of DNA?
well, it's quite useful when enzymes supposed to do something with DNA are searching for the "starting sequence". in major groove, you can always recognize the base pairs without unwinding the double-helix. it's coded by order of the groups CH3, H-bond donor, H-bond acceptor and H, which is different for each combination of base pairs. (you obviously must know the 5´-> 3´ ordering either.) grooves are usefull to be recognized with lot of DNA - protein links structures, like helix-turn-helix pattern, or zinc fingers, which are bonding to the grooves.
What does the helix fossil evolve into?
Helix fossil turns into Omanyte once you bring it to the Fossil guy on Cinnabar Island in the old Research facility. The Dome fossil turns into Kabuto. And then you can get the Amber from the Museum, which will turn into Aerodactyl
How do you activate quad helix appliance?
To activate a quad helix appliance, the orthodontist will use a specialized key to turn the expansion screw located in the middle of the appliance. This turning motion helps widen the appliance and gradually expand the upper arch of the mouth. The orthodontist will determine the appropriate activation schedule and provide instructions on how often to turn the screw.
How many base pairs are in full turn or twist of a DNA molecule?
3.4 bp are present in per turn of DNA helix
How do you rearrange the nitrogen bases in DNA?
Considering that DNA molecule (the ideal configuration called B-DNA or Watson-Crick Structure), the nitrogen bases occupy the core of the helix, while the sugar-phosphate chains (the backbone) are coiled about its periphery.The planes of the bases are nearly perpendicular to the helix axis. Each base is hydrogen bonded to a base on the opposite strand to form a planar base pair. The hydrogen bonding interactions are known as complementary base pairing, that result in the specific association of the two chains of the double helix, always in the same way, that is: adenine-thymine and guanine-cytosine, at a rate of 10 base pairs per helical turn.
What does a helix fossil turn into?
Omanyte
What part of CAP and lac repressor are directly responsible for recongnition of specific DNA sequences in the major groove?
A protein that has a helix-turn-heloix domain can bind to DNA because one of the helices interacts with the sugar phosphate backbone of a DNA strand while the other helix binds to the base bairs in the major groove. The section of the helix-turn-helix motif that binds inside the major groove is called the "recognition sequence"
What is the pitch of an amino acid -helix?
The pitch of a helix is defined as the distance along the helical axis that results in one full turn of the helix. In the case of amino acid helices, this value is an average value of about 5.5 Angstroms. A-DNA B-DNA Z-DNA Right-handed helix Right-handed Left-handed Short and broad Long and thin Longer and thinner Helix Diameter 25.5A 23.7A 18.4A Rise / base-pair 2.3A 3.4A 3.8A Base-pair / helical turn ~ 11 ~ 10 ~ 12 Helix pitch 25A 34A 47A Tilt of the bases 20 deg -1 deg -9 deg Also see http://tigger.uic.edu/classes/phys/phys461/phys450/ANJUM04/
Who best described the structure of DNA?
DNA is a linear polymer of nucleotides whose phosphates bridge the 3' and 5' positions of succesive 2-deoxy-D-ribose residues, and nitrogenous bases such as purines and pyrimidines. In detail, DNA is a) a helical molecule, and b) its planar aromatic bases form a stack of parallel rings that is parallel to the fiber axis. There are several configurations of the DNA molecule. The A, B, and C forms of DNA are right-handed, double-stranded helices which, in fibrous form, are stable at intermediate, high, and low relative humidities, respectively, and have 11, 10, and 9.3 base pairs per turn of double helix. The left-handed helix of B-DNA structure is refered as Z-DNA (it contains 12 bases pairs per turn of double helix, and has only a single groove. B-DNA (the so-called Watson-Crick structure) is regarded as the native form because its X-ray pattern resembles that of the DNA in intact sperm heads, and is a double helix with around 20 angstroms diameter. The planes of the bases are nearly perpendicular to the helix axis and conserve the so-called "complementary base pairing" (that is, adenine base always is in front of a guanine base, as well as thymine is always in front of a cytosine. The "ideal" B-DNA helix has 10 base pairs (bp ) per turn (a helical twist of 36o per bp) and, the aromatic bases have van der Waals thicknesses of 3.4 angstroms and are partially stacked on each other (known as base stacking). Finally, the helix has a pitch (rise per turn) of 34 angstroms.
What does it mean when it is said that DNA is the template?
When DNA replicates, it is "unzipped", or split in half. Each half will be left with only one half of a base pair (A&T, C&G). To make new DNA, the single helix will act as a template to build the complementary single helix, which will in turn create a new double helix. Since each element of a base pair can only pair with its other half, the helix is a map, or template, for the new helix. The same concept applies when talking about transcription, or the formation of RNA. However, RNA replaces thymine (T) with uracil (U).
How many residues generally contribute to a turn in the helix?
3.6
When tryptophan is present in the medium the transcription of tryptophan producing genes in E. coli is stopped by a helix-turn-helix regulator binding to the?
Promoter
What do the fosills turn into in Pokemon FireRed?
dome is kabuto helix is omanyte
How many base pairs are there per DNA twist?
human genome ca 3,2*109 with 40.000 Genesto compare with cabbage : 6*108 with 100.000 Genes...soberingTaking into account that one base pair holds 1 bit of information, the entire human genome holds just over 390 MB (megabytes) of information.
how many amino acids are there in one turn of alpha helix?
3.6 amino acid.
