The Antiparallel Arrangement Within DNA Molecules Refers to ________

Question

The antiparallel arrangement within DNA molecules refers to ________.
A)each base bonding at the 1' position of the sugar
B)a purine always bonding to a pyrimidine
C)one helix strand that runs from the 5' to 3' direction and the other strand runs from the 3' to 5' direction
D)an original parent DNA strand and one newly synthesized DNA strand comprising a new DNA molecule
E)None of the choices are correct.

Accepted Answer

The antiparallel arrangement refers to one strand of the DNA helix running from the 5' to 3' direction, while the other strand runs in the opposite 3' to 5' direction. This arrangement is important for base pairing and facilitates the formation of hydrogen bonds between complementary base pairs.