BIOMOLECULES AND ENZYMES

Detailed explanation-1: -DNA helicase is an enzyme that unwinds the DNA double helix by breaking the hydrogen bonds between the complementary bases.

Detailed explanation-2: -Key enzyme involved in DNA replication, it is responsible for ‘unzipping’ the double helix structure by breaking the hydrogen bonds between bases on opposite strands of the DNA molecule.

Detailed explanation-3: -DNA helicase continues to unwind the DNA forming a structure called the replication fork, which is named for the forked appearance of the two strands of DNA as they are unzipped apart. The process of breaking the hydrogen bonds between the nucleotide base pairs in double-stranded DNA requires energy.

Detailed explanation-4: -Explanation: DNA helicase unwinds the double helix, separating the two strands so they may be replicated by DNA polymerase. Primase adds an RNA primer to help initiate DNA replication. DNA ligase is responsible for joining Okazaki fragments on the lagging strand during replication.

Detailed explanation-5: -Helicase unzips & unwinds the 2 strands of DNA by breaking the weak hydrogen bonds between the nitrogen bases. Single-stranded binding proteins bind to the DNA strands to keep them separated.