Well In my opinion I have tried to gather some of the reasons that why DNA strands run in antiparallel directions. The following reasons are as follows :
1) It is antiparallel in order to match the charges and for bettter conformational
configuration.
2) It is due to the way DNA and RNA polymerase work.
3) The two strands of DNA have opposite chemical polarity which means that their sugar-phosphate backbones run in opposite directions. The direction is specified by referring to the carbons of the ribose ring in the sugar-phosphate backbone of DNA. 5' specifies the 5th carbon in the ribose ring, counting clockwise from the oxygen molecule, and 3' specifies the 3rd carbon in the ring. Direction of, and in reference to, DNA molecules is then specified relative to these carbons. For example, transcription, the act of transcribing DNA to RNA for eventual expression, always occurs in the 5' to 3' direction. Nucleic acid polymerization cannot occur in the opposite direction, 3' to 5', because of the difference in chemical properties between the 5' methyl group and the 3' ring-carbon with an attached hydroxyl group. Anurag
dna binding protein binds the 2 anti parallel strands of dna together
DNA replication occurs in an anti-parallel direction because the DNA helix is composed of two strands running in opposite directions. This ensures that the new DNA strand is synthesized in a continuous manner without interruptions. The anti-parallel arrangement allows for the complementary base pairing that is necessary for accurate replication.
Anti-parallel
The term "anti-parallel" refers to the orientation of the two strands of the DNA double helix. In this structure, one strand runs in the 5' to 3' direction, while the complementary strand runs in the opposite direction, from 3' to 5'. This orientation is crucial for processes like DNA replication and transcription, as it allows for proper base pairing and enzyme activity.
The process is called bidirectional replication. In this process, DNA polymerases synthesize new strands in opposite directions on each template strand.
when it is not parallel parrallel is when it is two straight lines: like train tracks anti parallel is when it is going of course: like a trapezium
DNA ends 3 to 5, 5 to 3 polarity. opposite ends of DNA synthesis 3 OH, 5 PO DNA always have antiparallel configuration
In a double-stranded DNA molecule, the two strands run in opposite directions. One strand runs from the 5' to 3' direction, while the other runs from the 3' to 5' direction, hence they are antiparallel. This allows complementary base pairing between the strands, where adenine binds with thymine and guanine binds with cytosine.
Two vectors are max when parallel and min when anti-parallel.
Forces that are equal and anti-parallel.
An electric field parallel to an electric dipole will exert a torque on the dipole, causing it to align with the field. An electric field anti-parallel to an electric dipole will also exert a torque on the dipole, causing it to rotate and align with the field in the opposite direction.
Parallel beta sheets are less stable than anti-parallel beta sheets because of the weaker hydrogen bonding interactions between strands in parallel sheets. The alignment of hydrogen bond donors and acceptors in parallel beta sheets reduces the strength of hydrogen bonds, leading to lower stability. In anti-parallel beta sheets, the hydrogen bonds are more linear and therefore stronger, enhancing the overall stability of the structure.