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What does it mean when we say that the two strands of DNA in the double helix are antiparallel?
Wiki User
∙ 8y ago
DNA strands are antiparallel for the integrity of the molecule. This allows formation of the hydrogen bonds between nitrogenous bases. If they were not antiparallel the bonds would not be possible.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoThe two strands are antiparallel because of the complementarity of the nucleobases that comprise them: DNA is comprised of four nucleobases or "bases": cytosine, guanine, adenine, and thymine. The thing is, they pair up with each other in only one way: C-G and A-T, and vice verse.
When cells divide, this complementarity is critically important to the way DNA communicates vast amounts of biological information to all daughter cells.
When a cell nucleus splits, its DNA strands each "unzip" into two antiparallel strands each of which eventually ends up in the new nucleus of a daughter cell. As a part of this process, the strands (RNA) undergo a chemical reduction by attracting new nucleobases to the exposed "zipper"... BUT the ONLY nucleobase that can attach to a given "link" in the zipper, is the complementary one, and that is how the extremely vast and complex biological information is conserved as cells divide. If ever a mistake occurs in this replication process, (ie, the perfection of its "antiparallelarity" is corrupted) we call that a mutation that can be anything from totally inconsequential to critical for the survival of the whole living organism... or daughter cell... a cancer cell could be created, for example.
Wiki User
∙ 11y agoThe DNA strands, template strand and sense strand are opposite in direction i.e. if one runs from the 5' end to 3' end, the other runs from 3' end to 5' end. Anti-parallel arrangement is vital to support formation of hydrogen bond (double bond between adenine and thymine with triple bond between cytosine and guanine).
Wiki User
∙ 13y agoThe two strands are antiparallel because of the complementarity of the nucleobases that comprise them: DNA is comprised of four nucleobases or "bases": cytosine, guanine, adenine, and thymine. The thing is, they pair up with each other in only one way: C-G and A-T, and vice verse.
When cells divide, this complementarity is critically important to the way DNA communicates vast amounts of biological information to all daughter cells.
When a cell nucleus splits, its DNA strands each "unzip" into two antiparallel strands each of which eventually ends up in the new nucleus of a daughter cell. As a part of this process, the strands (RNA) undergo a chemical reduction by attracting new nucleobases to the exposed "zipper"... BUT the ONLY nucleobase that can attach to a given "link" in the zipper, is the complementary one, and that is how the extremely vast and complex biological information is conserved as cells divide. If ever a mistake occurs in this replication process, (ie, the perfection of its "antiparallelarity" is corrupted) we call that a mutation that can be anything from totally inconsequential to critical for the survival of the whole living organism... or daughter cell... a cancer cell could be created, for example.
Wiki User
∙ 12y agoThey run in different directions. One strand will be 5' -> 3' and the other 3' -> 5'.
Therefore a section of DNA would look like this:
5'- ATTGCTAGCTGCG -3'
3'- TAACGATCGACGC -5'
Wiki User
∙ 12y agoThe two ends of a DNA strand have different chemical groups.
Wiki User
∙ 11y agoyes
Anonymous
It means that the strands are complementary, meaning A will bond with U, T will bond with A, C with G, etc.
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What does semi-conservative model mean?
Refers to semi-conservative replication of DNA. One strand of the old DNA is used as a template to replicate the other, new, strand of DNA. Thus you have four from two, but two of the four are old strands while the other two strands are new. Thus the name semi-conservative replication.
What do you mean by hypothesis explain its dimension and sources?
It is an idea or explanation tested through study and experiments. The sources are the triple tradition and double tradition.
An inclined plane wrapped around a cylinder is called?
A screw or a bolt is an inclined plane wrapped around a cylinder.
If you double the force you throw a ball the acceleration will double?
No. For a start, you probably don't mean "acceleration" you probably mean "speed" or "velocity." There is a non-linear relationship between force applied on an object and the speed which it will travel through a medium (in this case, air). To double the speed, the amount of force required is more than double, since as the speed of the object increases, the frictional losses similarly increase. Since in this case, the ball will continue to slow immediately after release, the ball is experiencing "acceleration" with a negative value. A In case you are really asking about acceleration the answer is yes. If the ball, in your hand, starts from rest and is accelerated up to some velocity at which it leaves your hand then that acceleration will be double if you throw with twice the force. This will cause the ball to leave your hand with twice the velocity. Once it leaves your hand you are no longer exerting a force on it and the ball will be subject to air resistance which will affect its velocity as described above.
What does evaluate your method mean?
You needed to double check your experimental results again and again to show they are repeatable and not just a "fluke". Should you have used something else in the experiment? Did you use too much? Too little?
What does antiparallel mean?
Anti-parallel means the sides of the DNA double helix.
What is the DNA twisted structure called?
AnswerThe "twisted ladder" shape of DNA is called a double helix.
What do the initials D N A mean?
It stands for Deoxyribose Nucleic AcidDNA makes up the double helix that is responsible for our genetic coding.
What does antiparallel mean in DNA?
One strand runs one way and the other runs the opposite way. An example using integers. 12345678 87654321 except in DNA there are only four different bases. Thus; AGTC TCAG
If the DNA strands are matched up what does that mean?
This means the two strands of DNA are complementary.
What is double?
do you mean dk or double knit yarn ? if so this is basically equal to USA sport yarn. It is non American version and knits at between 5-6 stitches to the inch using a number 5 - 6 needle ........ OR ..... did you mean just using the yarn double as in using two strands at once? if your pattern says use the yarn double then just use two strands at once by pulling from two skeins and holding both threads together when your work .
What molecles form the sides of the ladder?
I'm assuming you mean the double helix "ladder-like" formation of a strand of DNA. The sides of the structure are essentially a phosphate-deoxyribose backbone.
What is double yarn and simple yarn?
do you mean dk or double knit yarn ? if so this is basically equal to USA sport yarn. It is non American version and knits at between 5-6 stitches to the inch using a number 5 - 6 needle ........ OR ..... did you mean just using the yarn double as in using two strands at once? if your pattern says use the yarn double then just use two strands at once by pulling from two skeins and holding both threads together when your work .
What makes up the arms of the DNA spiral?
If you mean the "rungs", they are made up of the bases (adenine and thymine; cytosine and guanine). The sides of the double helix is made up of phosphate and sugars.
What does the prefix Helik mean?
Having the form of a helix or spiral.
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).
What does it mean to say DNA polymerase reads a template strand to make the complementary strand?
During DNA replication, the enzyme DNA polymerase catalyses the formation of new strands of DNA, using the old strands as models. DNA has a double-helix structure, with two strands forming each helix. Each strand is made up of DNA nucleotides, with the genetic information encoded in the sequence of different nucleotides (different nucleotides are distinguished by molecules called 'bases' attached to them, so the sequence of nucleotides is known as the 'base sequence'). The base sequence of one strand is complementary to that of its' neighbour - the base A binds with T, and C with G, so if one strand had the sequence ATTACA, the base sequence of the complementary strand would be TAATGT. When DNA polymerase creates a new DNA strand, it does so by matching nucleotides to the base sequence of one of the strands - the template strand. New nucleotides are brought in, which match the template in a complementary fashion (ie. A-T, C-G), and join to become one new strand. This new strand is complementary to the template.
