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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Two exact copies of the original strand of DNA
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Two different strands of DNA
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Strands that complement each other
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Two new organisms
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Detailed explanation-1: -The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.
Detailed explanation-2: -DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
Detailed explanation-3: -Once the DNA has been replicated, two DNA molecules are formed in which one being the same as the parent and the other one being a newly synthesized strand. The cell can now further undergo division and each daughter cell gets the copy of DNA same as the parent cell.
Detailed explanation-4: -The initiation of DNA replication occurs in two steps. 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-5: -The result of exact DNA replication is two DNA molecules made from one original strand and one new strand. The new DNA molecules are identical to the original DNA molecule.