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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What is needed for DNA replication? Select all that apply.
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Enzymes to break the hydrogen bonds of the DNA molecule
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Free nucleotides
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Polymerase to join nucleotides onto the template DNA strand
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Genetic information that speeds up the process
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Free amino acids
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Explanation:
Detailed explanation-1: -Most organisms, including mammals, use bi-directional replication. There are four basic components required to initiate and propagate DNA synthesis. They are: substrates, template, primer and enzymes.
Detailed explanation-2: -DNA polymerase cannot synthesize new DNA without a pre-existing 3′-OH. Thus, DNA replication requires an RNA primer to initiate strand formation.
Detailed explanation-3: -DNA polymerase enzymes are required for the assembly of the daughter strands along each of the template DNA strands. All DNA polymerases require a DNA template and a primer that is used to begin the replication process. The primer is a short strand of RNA that is placed on the DNA template by the primase enzyme.
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