THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Helicase
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RNA Primase
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DNA Polymerase III
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DNA Polymerase I
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Ligase
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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: -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-3: -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-4: -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.
Detailed explanation-5: -During DNA replication, an enzyme called DNA helicase “unzips” the molecule of double-stranded DNA.