THE MOLECULAR BASIS OF INHERITANCE
DNA REPLICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mismatched nucleotide bases are identified and replaced.
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Free-floating nucleotides pair up with exposed bases.
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Identical double-stranded DNA molecules are formed.
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Enzymes break hydrogen bonds between base pairs.
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Detailed explanation-1: -Which of the following events occurs directly after a DNA molecule is unzipped? Mismatched nucleotide bases are identified and replaced.
Detailed explanation-2: -Once the DNA is unzipped it forms a template for the binding of the DNA Polymerase and other accessory proteins. The synthesis of a new strand occurs using this unzipped DNA as the template in the 5’-3’ direction.
Detailed explanation-3: -Which of the following events occur directly after a DNA molecule is unzipped? Free-floating nucleotides pair up with the exposed bases.
Detailed explanation-4: -After the primer is in place on a single, unwound polynucleotide strand, DNA polymerase wraps itself around that strand, and it attaches new nucleotides to the exposed nitrogenous bases. In this way, the polymerase assembles a new DNA strand on top of the existing one (Figure 3).