CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is identical or nearly identical to the first DNA molecule.
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The sequence of bases, from top to bottom, is opposite the sequence in the first DNA molecule.
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It is half the size of the first DNA molecule.
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It is twice the size of the first DNA molecule.
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Detailed explanation-1: -When one DNA molecule is replicated, the result is two DNA molecules. What is true of the second DNA molecule? It is identical or nearly identical to the first DNA molecule. The sequence of bases, from top to bottom, is opposite the sequence in the first DNA molecule.
Detailed explanation-2: -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-3: -This is known as semiconservative replication. When two DNA copies are formed, they have an identical sequence of nucleotide bases and are divided equally into two daughter cells.
Detailed explanation-4: -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.
Detailed explanation-5: -After DNA replication is complete, there are two new DNA molecules; one molecule has both of the original strands and one molecule has two new strands of DNA.