THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Helicase
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tRNA
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RNA polymerase
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mRNA
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Detailed explanation-1: -Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.
Detailed explanation-2: -Certain proteins bind to the origin of replication while an enzyme called helicase unwinds and opens up the DNA helix.
Detailed explanation-3: -DNA helicase is an enzyme that unwinds the DNA double helix by breaking the hydrogen bonds between the complementary bases.
Detailed explanation-4: -DNA helicases are also called molecular motors. They unwind the DNA with the help of ATP hydrolysis, and thus facilitate the replication and transcription processes.
Detailed explanation-5: -RNA polymerase II allows unwinding and rewinding of the DNA and thus maintains a constant length of the transcription bubble.