AP BIOLOGY

Detailed explanation-1: -An enzyme called RNA polymerase travels along the DNA, unzipping its two strands. The molecule then copies one of the strands of DNA into a strand of RNA. This animation brings the process to life, showing three-dimensional representations of the molecules involved.

Detailed explanation-2: -The helicase unzips the double-stranded DNA for replication, making a forked structure. The primase generates short strands of RNA that bind to the single-stranded DNA to initiate DNA synthesis by the DNA polymerase. This enzyme can work only in the 5’ to 3’ direction, so it replicates the leading strand continuously.

Detailed explanation-3: -Yes, RNA polymerase unzips DNA during transcription. Although RNA polymerase is not classified as DNA helicase biochemically, it includes helicase activity and can unzip or unwind DNA but only locally and usually only for small lengths.

Detailed explanation-4: -RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.

Detailed explanation-5: -The enzyme DNA helicase breaks the hydrogen bonds between the bases in a specific region of the DNA molecule. This causes the two strands to separate and unwind, exposing nucleotide bases. The enzyme RNA polymerase binds to the template strand of DNA at the beginning of the sequence to be copied.