OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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RNA primase
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single-strand binding proteins
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DNA polymerase I
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DNA ligase
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Detailed explanation-1: -Then single-stranded binding protein attaches to the single-stranded DNA. Helicase unwinds the DNA helix and SSB protein keeps the strands apart. The two separated strands of the parental DNA molecule are complementary and so prefer base pairing to each other.
Detailed explanation-2: -First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.
Detailed explanation-3: -Single-stranded DNA binding (SSB) protein binds to single-stranded DNA (ssDNA) at the lagging strand of the replication fork in Escherichia coli cells. This protein is essential for the survival of the E.